Download Avid Technology SYNC HD Instruction manual

SYNC™ HD
Version 8.0
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This guide is copyrighted ©2009 by Digidesign, a division of
Avid Technology, Inc. (hereafter “Digidesign”), with all rights
reserved. Under copyright laws, this guide may not be
duplicated in whole or in part without the written consent of
Digidesign.
We, Digidesign,
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declare under our sole responsibility that the products
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650-731-6100
SYNC HD and SYNC I/O
comply with Part 15 of FCC Rules.
Operation is subject to the following two conditions: (1) this
device may not cause harmful interference, and (2) this device
must accept any interference received, including interference
that may cause undesired operation.
Communications Statement
NOTE: This equipment has been tested and found to comply
with the limits for a Class A digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own
expense.
Product features, specifications, system requirements, and
availability are subject to change without notice.
Changes or modifications to this product not authorized by
Digidesign, Inc., could void the Certification and negate your
authority to operate the product.
Guide Part Number 9106-59127-00 REV B 04/09
Canadian Compliance Statement:
Documentation Feedback
At Digidesign, we're always looking for ways to improve our
documentation. If you have comments, corrections, or
suggestions regarding our documentation, email us at
[email protected].
This Class A digital apparatus complies with Canadian ICES003
Cet appareil numérique de la classe A est conforme à la norme
NMB-003 du Canada
Australian Compliance
Communications & Safety Regulation Information
Compliance Statement
The models SYNC HD and SYNC I/O comply with the following
standards regulating interference and EMC:
• FCC Part 15 Class A
• EN55103 – 1, environment E4
• EN55103 – 2, environment E4
• AS/NZS 3548 Class A
• CISPR 22 Class A
Radio and Television Interference
This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the
FCC Rules.
European Compliance
Safety Statement
This equipment has been tested to comply with USA and
Canadian safety certification in accordance with the
specifications of UL Standards: UL60065 7th /IEC 60065 7th
and Canadian CAN/CSA C22.2 60065:03. Digidesign Inc., has
been authorized to apply the appropriate UL & CUL mark on its
compliant equipment.
Warning
Important Safety Instructions
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
5) Do not use this apparatus near water.
6) Clean only with dry cloth.
7) Do not block any ventilation openings. Install in accordance
with the manufacturer’s instructions.
8) Do not install near any heat sources such as radiators, heat
registers, stoves, or other apparatus (including amplifiers) that
produce heat.
9) Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades with one
wider than the other. A grounding type plug has two blades and
a third grounding prong. The wide blade or the third prong are
provided for your safety. If the provided plug does not fit into
your outlet, consult an electrician for replacement of the
obsolete outlet.
10) Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the point
where they exit from the apparatus.
11) Only use attachments/accessories specified by the
manufacturer.
12) Unplug this apparatus during lightning storms or when
unused for long periods of time.
13) Refer all servicing to qualified service personnel. Servicing
is required when the apparatus has been damaged in any way,
such as power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate
normally, or has been dropped.
contents
Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SYNC Peripheral Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
System Requirements and Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Digidesign Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
About This Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
About www.digidesign.com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 2. Installation and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Hardware Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
MachineControl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Synchronization and Time Code Connections to Machines, Decks, and Other Devices . . . . . . . 10
Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Emulating a SYNC I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Configuring a SYNC Peripheral from Pro Tools HD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
MachineControl Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Software Configuration for the SYNC Setup Software Utility . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Chapter 3. SYNC Peripheral Hardware and Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
SYNC Peripheral Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
SYNC Peripheral Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
SYNC Setup Software Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Chapter 4. Using SYNC Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
SYNC Peripheral Controls in Pro Tools, SYNC Setup Software Utility, and the Front Panel . . . . . 34
Front Panel Generator/Parameter Switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Clock References and Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Positional Reference and Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Compensating for Time Code Offsets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Contents
v
Generating & Regenerating Time Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Generating a Window Dub. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Chapter 5. Additional Operational Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Front Panel Generator/Parameter Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Using Fader Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Calibrating the SYNC Peripheral Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Restoring Factory Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Managing and Selecting Video Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Appendix A. Additional Synchronization Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Video and VITC Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
LTC Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Auto-Switch LTC/VITC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Digital Clock Signal Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Bi-Phase/Tach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Pilot Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Appendix B. Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Appendix C. Wiring Diagrams and Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
LTC Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Bi-Phase/GPI/Pilot Pin Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Bi-phase/Tach OptoCoupler Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
GPI Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
GPI (TTL)/MTC Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
GPI (opto) Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Connector Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
SYNC Peripheral Cable Pin Assignments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Bi-phase/Tach/GPI/Pilot Port Interfacing Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
vi
SYNC HD Guide
chapter 1
Introduction
This guide covers operation of the SYNC HD
and SYNC I/O, Digidesign’s multipurpose
synchronization peripherals for Pro Tools HD
systems.
Digidesign SYNC peripherals support all
Pro Tools sample rates, and synchronize to most
major time code and clock reference standards
used in audio, video, film, and multimedia
production.
Digidesign SYNC peripherals can also be used as
standalone synchronization devices.
SYNC Peripherals in Standalone Mode
Digidesign SYNC peripherals can be used as
standalone synchronization converters, time
code generators, clock generators and time code
character generators. Throughout this guide, the
term standalone refers to systems using the
SYNC HD or SYNC I/O but not using Pro Tools.
When used as a standalone device (or in “Standalone mode”), a SYNC peripheral is connected
to time code or clock signals, and is configured
from the front panel.
SYNC Peripherals with Pro Tools|HD
Systems
Optionally, while in Standalone mode, a SYNC
peripheral can be controlled remotely from a
Windows computer using the SYNC Setup
software utility.
With a Pro Tools|HD system, Digidesign SYNC
peripherals provide highly accurate lock to time
code. Most SYNC peripheral settings are available directly from within Pro Tools.
SYNC Setup Software Utility
(Windows Only)
The SYNC Setup software utility can be used
with or without Pro Tools to control SYNC
peripheral features from any supported Windows computer.
Chapter 1: Introduction
1
SYNC Peripheral Features
Digidesign SYNC peripherals support all
Pro Tools HD sample rates (44.1, 48, 88.2, 96,
176.4, and 192 kHz).
Output and Generation
• Loop Sync
• Digidesign Super Clock (256x sample clock)
• Word Clock (1x sample clock)
• AES/EBU null clock (AES “digital black”)
The SYNC HD supports both industry standard
SD (standard definition) and HD (high-definition) video reference rates, while the SYNC I/O
supports SD video reference rates only.
SYNC peripherals provide the following features
with Pro Tools HD:
• VITC (if a video input is present)
• LTC
• MIDI Time Code (MTC)
• Dual 9-pin Sony P-2 protocol ports (only one
can be active at a time), for limited serial deck
control with Digidesign MachineControl
Supported Positional Reference Sources
• LTC
• VITC
• Serial Time Code
• Bi-phase/Tach
Supported Clock Reference Sources
• Loop Sync
• Video Reference
• SD reference rates
• HD reference rates (SYNC HD only)
• Composite Video Input
• Word Clock
• AES/EBU (DARS per AES-11 standard)
• Pilot Tone
• Internal Crystal
• Bi-phase/Tach
• LTC
2
SYNC HD Guide
Other Features
• Front panel controls and a large LED display
of time code and parameters
• Integrated control from Pro Tools
• Time Code Character Generator
• Fader start, provided through GPI output, for
remote transport control from select Pro Tools
fader movement
• Standalone remote control through SYNC
Setup software utility (Windows only)
• Field-updatable firmware
• SYNC I/O Emulation for legacy software support (SYNC HD only)
Controlling SYNC Peripherals in
Standalone Mode
If you use a custom serial cable between
Pro Tools and the SYNC peripheral, be sure
the cable supports hardware handshaking.
The maximum supported length for this
cable is 100 ft.
If you are using a SYNC peripheral in Standalone
mode, you can control it with the SYNC Setup
software utility (Windows only), or with the
switches on the front panel of the SYNC peripheral.
The SYNC Setup software utility (Windows
only) gives you access to all SYNC peripheral
controls. The following SYNC peripheral parameters are accessible only through Pro Tools or
the SYNC Setup software utility:
• Variable Speed Override (VSO)
• Window dub parameters: While you can
turn the Window dub on or off from the
front panel, you cannot configure its display parameters without Pro Tools or the
SYNC Setup software utility.
See “SYNC Peripheral Controls in
Pro Tools, SYNC Setup Software Utility,
and the Front Panel” on page 34.
System Requirements and
Compatibility
SYNC Peripherals with Pro Tools
To use a SYNC peripheral with Pro Tools HD,
the following is required:
• A Digidesign-qualified Pro Tools|HD system
• An available DigiSerial port on the system’s
HD Core card
• An 8-pin to 8-pin serial cable (included) to
connect the SYNC peripheral to the DigiSerial
port on a Pro Tools PCI or PCIe card
For more information, see Appendix C,
“Wiring Diagrams and Pin Assignments.”
SYNC Setup Software Utility
(Windows Only)
The optional SYNC Setup software utility requires the following:
‹
A Digidesign-qualified Windows computer.
‹ An available COM port or serial port on the
computer to connect to the SYNC peripheral.
(You cannot run the SYNC Setup software utility
through the DigiSerial port on Pro Tools cards.)
The computer requirements for the SYNC
Setup software utility are different from the
computer requirements for Pro Tools. You
can run the SYNC Setup software utility
from slower Windows computers.
‹ A non-standard 9-pin to 8-pin cable is required to connect the SYNC peripheral to a
COM port or serial port on a Windows computer. Wiring instructions for making the required cable are in Appendix C, “Wiring
Diagrams and Pin Assignments.”
Compatibility Information
Digidesign can only assure compatibility and
provide support for hardware and software it has
tested and approved.
For a list of Digidesign-qualified computers,
operating systems, hard drives, third-party
devices, and all the latest compatibility
information, visit the Digidesign website
(www.digidesign.com/compatibility).
Chapter 1: Introduction
3
Digidesign Registration
Review the enclosed Digidesign Registration
Information Card and follow the instructions
on it to quickly register your purchase online.
Registering your purchase is the only way you
can be eligible to receive complimentary technical support and future upgrade offers. This is
one of the most important steps you can take as
a new user.
Conventions Used in This Guide
Digidesign guides use the following conventions to indicate menu choices and key commands:
:
Convention
Action
File > Save
Choose Save from the File
menu
Control+N
Hold down the Control key
and press the N key
Control-click
Hold down the Control key
and click the mouse button
Right-click
Click with the right mouse
button
About This Guide
This guide assumes:
• You understand the basics of synchronization and time code
• You know how to operate devices that send
or receive time code, such as a video deck
• You have an understanding of the time
code requirements for your projects
This Guide covers use of the SYNC HD and the
SYNC I/O with Pro Tools HD version 8.0 and
higher.
For versions of Pro Tools lower than 7.3, the
SYNC HD can be set to emulate a
SYNC I/O. See the Digidesign website
(www.digidesign.com) for a version of the
SYNC I/O Guide that applies to your system.
The names of Commands, Options, and Settings
that appear on-screen are in a different font.
The following symbols are used to highlight important information:
User Tips are helpful hints for getting the
most from your system.
Important Notices include information that
could affect your data or the performance of
your system.
Shortcuts show you useful keyboard or
mouse shortcuts.
Cross References point to related sections in
this guide and other Digidesign guides.
4
SYNC HD Guide
About www.digidesign.com
The Digidesign website (www.digidesign.com) is
your best online source for information to help
you get the most out of your Pro Tools system.
The following are just a few of the services and
features available.
Product Registration Register your purchase
online. See the enclosed Digidesign Registration
Information Card for instructions.
Support and Downloads Contact Digidesign
Technical Support or Customer Service; download software updates and the latest online
manuals; browse the Compatibility documents
for system requirements; search the online Answerbase; or join the worldwide Pro Tools community on the Digidesign User Conference.
Training and Education Study on your own using
courses available online or find out how you can
learn in a classroom setting at a certified
Pro Tools training center.
Products and Developers Learn about Digidesign
products; download demo software or learn
about our Development Partners and their plugins, applications, and hardware.
News and Events Get the latest news from
Digidesign or sign up for a Pro Tools demo.
Pro Tools Accelerated Videos Watch the series of
free tutorial videos. Accelerated Videos are designed to help you get up and running with
Pro Tools and its plug-ins.
Chapter 1: Introduction
5
6
SYNC HD Guide
chapter 2
Installation and Configuration
Hardware Connections
The following are the primary hardware connections on a SYNC peripheral:
• AC Power
• Serial to a DigiSerial port on a Pro Tools PCI or
PCIe card, or a serial port on the computer
• Clock to Pro Tools audio interfaces
(Loop Sync or Super Clock)
• 9-pin to external machines (requires the
Digidesign MachineControl option)
• Synchronization, including positional and
clock references to and from remote machines
Serial Connections
Serial to Pro Tools Core Card
Pro Tools systems require a serial connection between the SYNC peripheral and an HD Core or
Accel Core card.
To connect a SYNC peripheral to an HD Core or
Accel Core card:
1 Make sure power is off on all equipment.
2 Connect one end of the included serial cable
to the SYNC peripheral Host Serial port.
3 Connect the other end to the DigiSerial port
on your HD Core or Accel Core card.
AC Power
SYNC peripheral AC connectors accept a standard AC Power Cable. SYNC peripherals are auto
power-selecting (100V to 240V) and will automatically work with a standard modular cable to
connect to AC power receptacles in any country.
Do not use the DigiSerial port on any other
Pro Tools HD card in your system.
Chapter 2: Installation and Configuration
7
Serial Connections for the SYNC Setup
Software Utility
To connect a SYNC peripheral to Pro Tools|HD
interfaces:
(Windows Only)
1 Using a BNC cable, connect the Loop Sync
Any system using the optional SYNC Setup software utility requires a serial connection from
the SYNC peripheral to a supported Windows
computer. (For compatibility information, see
“System Requirements and Compatibility” on
page 3.)
The SYNC Setup software utility will
not control the SYNC peripheral
through the DigiSerial port.
Out of the SYNC peripheral to the Loop Sync In
of your primary Pro Tools|HD audio interface.
2 Using a second BNC cable, connect the SYNC
peripheral Loop Sync In to the Loop Sync Out of
your Pro Tools|HD interface.
Loop Sync
SYNC peripheral
INTERNALLY
TERMINATED
IN
964530300294856
SERIAL NUMBER
OUT
BI-PHASE / TACH / GPI / PILOT
VIDEO REF
HOST SERIAL
L
T
C
I
N
VIDEO
L
T
C
AC 100-240V, 50-60HZ, .5A 30W
A
E
S
A
E
S
O
U
T
IN
IN
9-PIN OUT 1
O
U
T
I
N
MTC OUT
OUT
OUT
WORD CLOCK (1x,256x)
LOOP SYNC
9-PIN OUT 2
To connect a SYNC peripheral to a Windows
computer for the SYNC Setup software utility:
1 Purchase or make the required 9-pin to 8-pin
cable. For wiring details, see “SYNC Setup Software Utility Cable” on page 93.
2 Make sure power is off on all equipment.
96 I/O Interface
Loop Sync connections for SYNC peripheral and 96 I/O
When using more than one Pro Tools|HD audio
interface, make the SYNC peripheral the first
and last unit in the Loop Sync chain.
3 Connect the SYNC peripheral Host Serial port
to an available serial or COM port on your computer.
SYNC peripheral
INTERNALLY
TERMINATED
IN
964530300294856
SERIAL NUMBER
OUT
4 Restore power to the SYNC peripheral, and re-
BI-PHASE / TACH / GPI / PILOT
VIDEO REF
HOST SERIAL
L
T
C
I
N
VIDEO
MTC OUT
L
T
C
O
U
T
A
E
S
I
N
A
E
S
O
U
T
AC 100-240V, 50-60HZ, .5A 30W
IN
IN
9-PIN OUT 1
OUT
OUT
WORD CLOCK (1x,256x)
9-PIN OUT 2
LOOP SYNC
start your computer.
Clock for Pro Tools
Audio Interfaces
The SYNC peripheral must be connected to all
Pro Tools|HD interfaces in the Loop Sync chain.
Connecting Loop Sync for Pro Tools|HD
Systems
SYNC peripherals support Loop Sync, and can
serve as Loop Sync Master. Loop Sync is a
dedicated clock loop for synchronizing multiple
Pro Tools|HD interfaces. Loop Sync should only
be used to connect multiple Pro Tools|HD
interfaces.
8
SYNC HD Guide
HD Interfaces
Loop Sync in an expanded Pro Tools|HD system
Using Legacy Audio Interfaces with
Pro Tools|HD
MachineControl
If you are using a Pro Tools|HD system that includes a legacy audio interface (an 888|24,
882|20, 1622, or 24-Bit ADAT Bridge audio interface), connect the Clock output of the HD system to the Slave Clock Input of the legacy
interface.
On MachineControl-enabled Pro Tools systems,
SYNC peripherals support limited Serial Deck
Control only.
To connect a legacy audio interface to an
HD-series system with a SYNC peripheral:
A limited degree of Serial Deck Control mode is
available through a connection to the 9-pin
ports on the SYNC peripheral. For full Serial
Deck Control, a direct serial connection to the
host Pro Tools computer is required.
1 Connect the SYNC peripheral to the HD-series
system with Loop Sync as described in the previous steps.
2 Using a BNC cable, connect the Ext Clock Out
of your primary HD-series interface to the Slave
Clock In of your first legacy interface.
INTERNALLY
TERMINATED
IN
964530300294856
SERIAL NUMBER
OUT
BI-PHASE / TACH / GPI / PILOT
HOST SERIAL
VIDEO REF
L
T
C
L
T
C
O
U
T
I
N
VIDEO
A
E
S
I
N
MTC OUT
A
E
S
O
U
T
AC 100-240V, 50-60HZ, .5A 30W
IN
IN
9-PIN OUT 1
Computer 2
8
5
3
ANALOG OUTPUT
6
4
1
7
2
8
5
3
ANALOG INPUT
6
4
1
2
5/6
1/2
AES/EBU OUTPUT
7/8
3/4
5/6
1/2
AES/EBU INPUT
7/8
3/4
To connect an external deck to a SYNC peripheral:
‹ Connect a standard 9-pin cable from one of
the 9-pin Out ports on the SYNC peripheral to
the 9-pin connector of the external deck.
LOOP SYNC
9-PIN OUT 2
Computer 1
7
(Non-Linear Decks Only)
OUT
OUT
WORD CLOCK (1x,256x)
Serial Deck Control Mode
8 CH Mode
2 x 4 CH Mode
S/PDIF S/PDIF
IN
OUT
SLAVE CLOCK SLAVE CLOCK
IN
OUT
Clock for SYNC I/O, a 96 I/O, and an 888|24 I/O
3 If you are connecting multiple legacy inter-
faces, daisy-chain their Slave Clock connections
by connecting the Slave Clock Out of the first
interface to the Slave Clock In of the next
interface.
See the HD Setup Guide for external clock
configuration instructions.
As many as two decks can be connected to the
two 9-pin Out ports on the SYNC peripheral.
You can control one deck at a time, switching
between them from within Pro Tools. These
ports on the SYNC peripheral support all MachineControl modes except 9-Pin Remote (Deck
Emulation) mode.
Due to performance limitations, this
configuration should be used primarily
with non-linear decks.
9-Pin Remote Deck Emulation
Mode
9-Pin Remote Deck Emulation mode requires a
direct serial connection to the host computer.
For more information on MachineControl
connections and operation, see the
MachineControl Guide.
Chapter 2: Installation and Configuration
9
Synchronization and
Time Code Connections to
Machines, Decks, and Other
Devices
The following sections describe connections required for different applications. For more information on time code applications, see
Appendix A, “Additional Synchronization Information.”
Character Generator for Time Code
Window Dub
SYNC peripherals can generate a time code window dub on SD signals coming into the Video In
port.
(SYNC HD Only) Even when you have an
HD video reference signal connected to the
Video Ref connector, you can still connect an
SD video signal to the Video In connector to
provide a window dub.
Connecting a Video Source
To use the SYNC peripheral Time Code Character
Generator to make a window burn:
This section describes connections required
when using house video reference (SD or HD).
1 Connect an SD video signal to the SYNC pe-
To have the SYNC peripheral resolve to house
sync:
„ Connect the house video reference, black
burst, or tri-level sync source to a Video Ref port
on the SYNC peripheral.
The Video Ref ports are a non-terminated
loop-through connection. If the second
Video Ref port is not used, then you must
terminate it using the included 75-ohm
BNC terminator.
To have the SYNC peripheral resolve directly to an
incoming SD video signal:
„ Connect the SD video signal to the SYNC peripheral Video In port.
ripheral Video In port.
2 Connect the SYNC peripheral Video Out port
to other video devices, ensuring that the signal
is terminated by the last device in the chain.
Connecting LTC
SYNC peripherals provide LTC input and output
connectors.
To input LTC to a SYNC peripheral:
„ Connect the LTC signal from your machine,
synchronizer or other source to the SYNC peripheral LTC In port.
To output LTC from a SYNC peripheral:
„ Connect the SYNC peripheral LTC Out port to
your external devices.
10
SYNC HD Guide
Connecting Word Clock Devices
SYNC peripherals have Word Clock input and
output ports, which can be used simultaneously.
Use Word Clock when you want the SYNC peripheral to lock to 1x clock from DAT machines,
DA-88s, and similar digital devices.
Pro Tools|HD audio interfaces each have their
own Word Clock inputs, which provide additional clock options and flexibility. Refer to
Pro Tools|HD documentation for details.
To input Word Clock to a SYNC peripheral:
„ Connect Word Clock from the master Word
clock signal or device to the SYNC peripheral
Word Clock In.
Connecting AES/EBU Devices
To input AES/EBU clock reference to a SYNC
peripheral:
„ Connect the device’s AES/EBU output to the
SYNC peripheral AES/EBU input.
To supply AES/EBU clock reference from a SYNC
peripheral:
„ Connect the SYNC peripheral AES/EBU output to the AES/EBU reference input on a DAT
machine or other digital device. (AES/EBU clock
does not support 176.4 kHz or 192 kHz sample
rates.)
Connecting MIDI Time Code
Devices
To supply Word Clock from a SYNC peripheral:
Connect the SYNC peripheral Word Clock
Out to the Word Clock input of a digital device.
„
Make sure the SYNC peripheral Word Clock Out
port is configured to 1x for Word Clock.
Word Clock contains no positional information. If you want devices to play or record in
sync, you’ll still need to provide them with a
positional reference.
SYNC peripherals can generate time code to
provide positional reference to other devices.
See “Generating & Regenerating Time
Code” on page 49.
The SYNC peripheral MTC Out port supplies
MIDI time code, derived from conversion (from
LTC, VITC or Bi-Phase) or from MTC generation,
to synchronize MTC-compatible consoles, sequencers, lighting systems, and other devices.
MIDI time code from the MTC Out port always
matches the time code address displayed on the
SYNC peripheral front panel. To supply MTC
from the SYNC peripheral to another MTC-compatible device, connect the device as described
below.
To connect an MTC-compatible device to receive
MTC from a SYNC peripheral:
„ Connect the SYNC peripheral MTC Out port
to the appropriate MIDI input on the device, using a standard MIDI cable.
Chapter 2: Installation and Configuration
11
Pro Tools and MTC
Pro Tools receives MTC from SYNC peripherals
through its connection to the SYNC peripheral
Host Serial port. This signal does not include
standard MIDI time code, but is instead a highquality, proprietary time code signal designed
for Pro Tools. A MIDI Interface is not required
for Pro Tools to receive MTC.
MTC is output whenever the SYNC peripheral is
generating time code. This MTC output can be
muted when time code (LTC) is idle. See “MTC
Output and Idle Muting” on page 56 for details.
Software Installation
The following sections provide instructions to
install software required to use a SYNC peripheral with Pro Tools HD or with the standalone
SYNC Setup software (Windows only).
Updating SYNC Peripheral
Firmware
SYNC peripheral firmware is updated from the
DigiTest application.
To update SYNC Peripheral firmware:
1 Confirm that the SYNC peripheral is properly
connected to your computer in one of the following ways:
• If it is connected to a Pro Tools system, it
should be connected to a DigiSerial Port on
an HD Core card.
• (Windows Only) If it is connected to a computer without Pro Tools, it should be connected to the COM 1 port on the computer
with a standard serial cable.
2 Ensure that Pro Tools is not running.
3 Launch the DigiTest application.
4 Click SYNC Firmware.
SYNC Peripherals with
Pro Tools HD
All software required to use SYNC peripherals is
installed with Pro Tools HD software.
The availability of SYNC peripheral features
depends on the version of Pro Tools software
you are running. For details on features
available with your version of Pro Tools, visit
the Digidesign website.
DigiTest SYNC Firmware window
5 If you are using a DigiSerial Port connection,
make sure you have selected the HD Core card
from the pop-up menu.
12
SYNC HD Guide
6 Select the type of port connection for the
SYNC peripheral (DigiSerial Port or COM Port).
Emulating a SYNC I/O
7 Select the Synchronizer Type that you are up-
(SYNC HD Only)
dating (SYNC HD or SYNC I/O).
‹ If you are using a SYNC HD with Pro Tools HD
7.4 or higher, Pro Tools will automatically recognize the SYNC HD.
8 Click Begin Update.
9 Locate the firmware file you want to use, and
click Open.
10 Follow the on-screen instructions to power
‹ If you are using a SYNC HD with Pro Tools HD
version 7.3 or lower, set the SYNC HD to emulate a SYNC I/O.
cycle the SYNC peripheral while holding the Set
button.
To set a SYNC HD to emulate a SYNC I/O:
11 Wait for the firmware update to complete.
1 Press Set, and use the Up and Down switches
Do not power off the SYNC peripheral while the
update is in progress.
to display “Device ID” (dEuicE id).
12 When the update is complete, follow any on-
screen instructions.
13 Click Quit to quit the DigiTest application.
2 Press Set. The LED Time Code Display shows
shows the current Device ID for the unit:
“SYNC HD” (SYnc HD) or “SYNC I/O”
(SYnc IO).
3 Press the Up or Down switches to toggle the
SYNC Peripherals with SYNC
Setup Software Utility
Device ID to read “SYNC I/O” (SYnc IO).
4 Press Set.
(Windows Only)
When using a SYNC peripheral in Standalone
mode, it can be controlled remotely using the
SYNC Setup software utility. Updates to this utility can be downloaded from the Digidesign website (www.digidesign.com).
To install the SYNC Setup software utility on
Windows:
1 Make sure the SYNC peripheral is connected
to a serial or COM port on your computer. See
“Serial Connections for the SYNC Setup Software Utility” on page 8.
2 Insert the installer disc containing the latest
SYNC Setup software, or navigate to its location
if you downloaded an update.
3 Launch the installer and follow the on-screen
instructions.
Chapter 2: Installation and Configuration
13
Configuring a SYNC
Peripheral from Pro Tools HD
Pro Tools HD software provides configuration
controls that establish communication between
Pro Tools and the SYNC peripheral.
Loop Sync
SYNC peripherals support Digidesign’s Loop
Sync feature for connecting Pro Tools|HD interfaces. A SYNC peripheral can be configured as
the Clock Source (Loop Master) in order to provide Loop Sync master clock to the rest of your
Pro Tools|HD interfaces.
For system requirements and Loop Sync
connection instructions, see Chapter 1,
“Introduction.”
Pro Tools HD automatically recognizes if a
SYNC peripheral is connected to the DigiSerial
port when Pro Tools is launched. When
Pro Tools recognizes the SYNC peripheral, it automatically configures the Device and Port settings for it in the Peripherals dialog.
To check communication between Pro Tools and a
SYNC peripheral:
1 After installing Pro Tools and connecting the
SYNC peripheral, launch Pro Tools.
2 Choose Setup > Peripherals, and click the Syn-
chronization tab.
3 Under Digidesign Synchronization Device, se-
lect Enable SYNC HD (for a SYNC HD) or Enable
SYNC Peripheral (for a SYNC I/O).
14
SYNC HD Guide
SYNC peripheral settings in the Peripherals dialog
Pro Tools scans the DigiSerial port and checks
the SYNC peripheral firmware.
If you need to update your firmware, use the
DigiTest application installed with Pro Tools.
See “Updating SYNC Peripheral Firmware” on
page 12.
Configuring a SYNC Peripheral in
the Session Setup Window
When a SYNC peripheral is connected through
Loop Sync and enabled in the Peripherals dialog, its settings become available in the
SYNC Setup and Time Code Settings sections of
the Session Setup window.
Clock Source
Session
settings
The Clock Source can be any device in the Loop
Sync chain. This lets you use any digital input
source available on any Pro Tools|HD interface
(including the SYNC peripheral) simply by selecting that device and source from the
Clock Source pop-up menu.
Clock Reference
The selected Clock Source device determines
your choices for clock reference.
When Clock Source is a SYNC peripheral
When a SYNC peripheral is set to be the Clock
Source, it is the Loop Master. Clock, Positional
Reference, and Video Format selectors become
active in the SYNC Setup section of the Session
Setup window.
SYNC
Setup
Time Code
Settings
Session Setup window
See the Pro Tools Reference Guide for more
information on the Session Setup Window.
Clock Source
When connected and configured in the Loop
Sync chain, the SYNC peripheral appears along
with any Pro Tools|HD interfaces in the Clock
Source pop-up menu, located in the Session
Setup window.
SYNC Setup controls in the Session Setup window
SYNC peripheral Clock Reference choices include:
• Internal/VSO
• Video In
• Video Reference (SD)
Clock Source
• Video Reference (HD) (SYNC HD Only)
• LTC
• Bi-Phase
• Pilot Tone
• AES/EBU
SYNC peripheral selected as Clock Source in the
Session Setup window
• Word Clock
• Loop Sync
Chapter 2: Installation and Configuration
15
When the SYNC peripheral is not the selected
Clock Source device, the Clock Reference menu
in the SYNC Setup section switches to Loop
Sync.
For LTC clock reference, multiple choices
are available from the LTC sub-menu. See
“LTC and Clock Reference” on page 39.
To choose a different Loop Sync device as the
Clock Source:
„ Select a different Loop Sync device and Clock
Source from the Clock Source pop-up menu in
the Session Setup window.
To choose a Clock Reference:
„ Select an available clock source from the
Clock Reference pop-up menu in the Session
Setup window.
Choosing a Clock Source (96 I/O shown)
When Clock Source is an HD I/O
Choosing a Clock Reference
The Clock Source pop-up menu follows your selection of the SYNC peripheral for Clock Reference by automatically switching to the SYNC
setting. (You can also choose the SYNC peripheral as Clock Source first, then select a Clock Reference.)
16
SYNC HD Guide
When a 192 I/O, 192 Digital I/O, 96 I/O or
96i I/O is providing the Clock Source, it will be
the Loop Master. Clock Source options are available directly from the Clock Source menu, based
on the configuration of that interface in the
Hardware Setup dialog. Choices can include
AES, S/PDIF, Optical, or Word Clock.
See the HD Setup Guide for more information
on configuring audio interfaces.
Ref Present, Locked and Speed Cal
Indicators
The Ref Present, Locked and Speed Cal indicators
in the Session Setup window display synchronization status of the SYNC peripheral. The Locked
and Speed Cal indicators mirror the same LEDs
on the front panel.
Positional Reference
To select a positional reference:
„ Select a positional reference from the
Positional Reference pop-up menu, located in
the SYNC Setup section.
Positional Reference choices include:
• Auto LTC/VITC
• LTC
• VITC
Ref Present, Locked and Speed Cal Indicators
• Serial Time Code
• Bi-Phase
Ref Present The Ref Present indicator lights
when a valid video signal is present on the
Video Ref connectors.
Sample Rate
Locked The Locked indicator stays lit when the
SYNC peripheral is locked to the selected clock
reference. The Locked indicator flashes if the selected clock reference source is missing or out of
lockable frequency range.
The SYNC peripheral sample rate is determined
by the current Pro Tools session sample rate. In
Standalone mode, the SYNC peripheral sample
rate can be selected with the SYNC Setup software utility (Windows only), or using the front
panel switches. Current sample rate is indicated
by the Sample Rate LEDs.
Speed Cal The Speed Cal indicator lights to indicate the status of the clock reference:
• Yellow Solid: SYNC HD is locked and that
the clock reference is within 0.025% of the
expected rate
• Yellow Flashing Fast: SYNC HD is locked,
but the clock reference is between 0.025%
and 4% faster than the expected rate
When used with Pro Tools HD, SYNC peripherals supports all available sample rates. Setting
the session sample rate in the Playback Engine
or Hardware Setup dialogs also sets the SYNC peripheral to that sample rate.
• Yellow Flashing Slow: SYNC HD is locked,
but the clock reference is between 0.025%
and 4% slower than the expected rate
• Red Flashing Fast: SYNC HD is locked, but
the clock reference is more than 4% faster
than the expected rate
• Red Flashing Slow: SYNC HD is locked, but
the clock reference is more than 4% slower
than the expected rate
• Unlit: SYNC HD is not locked to the chosen
clock reference
Chapter 2: Installation and Configuration
17
Audio and Video Pull Up and Pull Down
Pro Tools provides up to 4.167% pull up, and
4.0% pull down choices. When working with a
Movie track containing video, a separate Video
Pull-Down menu becomes available in the Session Setup window, allowing you to apply standard or non-standard pull factors to audio and
video separately. This lets Pro Tools synchronize
to most supported SMPTE frame rates and formats.
Video Ref Format
SD Video Reference
Choose PAL or NTSC format for the session from
the Video Ref Format pop-up menu in the Session
Setup window. If the session already has video,
the format will be set automatically.
With Pro Tools HD, 4.167% pull up and
4.0% pull down are not available in
176.4 kHz and 192 kHz sessions.
Time Code Rate
While using Pro Tools, the SYNC peripheral
Time Code Rate automatically follows the session Time Code Rate setting. Session Time Code
Rate is set in the Session Setup window.
To set the session Time Code Rate:
Choosing an SD Video Format
HD Video Reference
Choose the video reference rate for the session
from the Video Ref Format pop-up menu in the
Session Setup window. If the session already has
video, the format will be set automatically.
„ Choose a rate from the Time Code Rate pop-up
menu in the Session Setup window.
Choosing a session Time Code Rate
In Standalone mode, the SYNC peripheral Time
Code Rate can be set using the SYNC Setup software utility (Windows only), or from the front
panel.
18
SYNC HD Guide
Choosing an HD Video Format
The following video reference rates are available
in the Video Ref Format pop-up menu:
Video Reference (HD) Rate
Video In Format
Slow PAL - 23.976
NTSC
Slow PAL - 24
PAL
720p - 23.976
NTSC
720p - 24
PAL (NTSC avail)
720p - 25
PAL
720p - 29.97
NTSC
720p - 30
NTSC
720p - 50
PAL
720p - 59.94
NTSC
720p - 60
NTSC
1080i - 47.95/1080psf - 23.976
NTSC
1080i - 48/1080psf - 24
PAL (NTSC avail)
1080i - 50/1080psf - 25
PAL
1080i - 59.94/1080psf - 29.97
NTSC
1080i - 60/1080psf - 30
NTSC
1080p - 24
PAL (NTSC avail)
1080p - 25
PAL
1080p - 29.97
NTSC
1080p - 30
NTSC
1080p - 50
PAL
1080p - 59.94
NTSC
1080p - 60
NTSC
• Slow PAL - 23.976
• Slow PAL -24
• 720p - 23.976
• 720p - 24
• 720p - 25
• 720p - 29.97
• 720p - 30
• 720p - 50
• 720p - 59.94
• 720p - 60
• 1080i - 47.95/1080psf - 23.976
• 1080i - 48/1080psf - 24
• 1080i - 50/1080psf - 25
• 1080i - 59.94/1080psf - 29.97
• 1080i - 60/1080psf - 30
• 1080p - 23.976
• 1080p - 24
• 1080p - 25
• 1080p - 29.97
• 1080p - 30
• 1080p - 50
• 1080p - 59.94
• 1080p - 60
Video In Format Settings at
HD Video Reference Rates
(SYNC HD Only)
When the Clock Reference is set to Video Reference (HD), SYNC HD automatically sets the
Video In format (NTSC or PAL) appropriate for
the selected Video Reference rate, as shown in
the following table.
With 24-frame and 48-frame rates only, a popup menu lets you set the Video In Format.
Chapter 2: Installation and Configuration
19
Clock Reference, Video Ref, and
Video In Settings when Importing
Avid Video
When you import Avid video media into a session, Pro Tools automatically sets the Clock Reference, Video Reference rate, and Video In format appropriate for the imported media.
Software Configuration for
the SYNC Setup Software
Utility
(Windows Only)
To configure the SYNC Setup software on
Windows:
1 Make sure the SYNC peripheral is connected
MachineControl Configuration
to your computer according to the instructions
in “Serial Connections” on page 7.
If you are using Digidesign MachineControl, do
the following to establish basic communication.
2 Launch the SYNC Setup software utility.
To configure MachineControl:
3 Choose SYNC Setup > Preferences from the
menu in the upper left corner of the SYNC Setup
application.
1 Choose Setup > Peripherals, and click the Synchronization tab.
2 In the Synchronization page, make sure the
SYNC peripheral is the current Synchronization
device, and DigiSerial is the selected port.
3 Click the Machine Control tab.
4 Enable and configure options for
9-pin Machine Control or 9-pin Remote.
Selecting the Transport Master
The Transport Master selector in Pro Tools lets
you select the device that will be controlled by
the Pro Tools transport. Choices include
Pro Tools and any other devices or modes you
have enabled in the Synchronization or Machine Control tabs of the Peripherals dialog.
Pro Tools Transport master
20
SYNC HD Guide
4 If not already selected, choose the appropriate
serial port for the SYNC-to-computer connection.
5 Close the Preferences window. The SYNC
Setup software utility should now show that it
recognizes the SYNC peripheral in the information display section.
Lost Communication
Troubleshooting
Status LEDs
The Locked and Speed Cal status LEDs on the
SYNC peripheral front panel and in the Session
Setup window may help you isolate potential
problems.
Ref Present Indicator
If Pro Tools loses communications with the
SYNC peripheral, a dialog appear asking you
whether you want to switch to MTC (if available) or continue trying to locate the SYNC peripheral. If you see a “lost communication” dialog, check power, DigiSerial, and other
connections.
Lost Communication Dialog
The Ref Present indicator in the Session Setup
window indicates whether or not the SYNC peripheral is receiving valid Video Ref signal. If
this indicator is not lit, check your video connections and termination status of the Video Ref
connectors on the SYNC peripheral.
The Lost Communication dialog provides the
following options for re-establishing synchronization when communication with the SYNC peripheral stops:
Use MTC Click this button if the SYNC peripheral is unavailable, to switch to any currently
connected MIDI interface for MTC synchronization. This option requires a compatible device
that supports MTC conversion, and that is already connected to your CPU and enabled.
Video Ref Present indicator
Ref Present indicator (Session Setup window)
Incoming Time Field
The Incoming Time field in the Session Setup window indicates whether or not the SYNC peripheral is receiving positional reference. If this field
appears to be inactive when inputting time code
to the SYNC peripheral, check your hardware
device settings, serial connection to your computer, and your software settings.
Keep SYNC Click this to leave the session configured for the SYNC peripheral, or to continue
searching for the SYNC peripheral to re-establish lost communication.
Synchronization Accuracy
If you are noticing drift or lack of accurate synchronization between your devices, check the
following:
‹ If your system locks up in the wrong place,
make sure you have set the correct frame rate
and format (NTSC or PAL) on all your devices.
Incoming Time Code
‹ If your system locks up in the correct location,
but drifts, check your clock signals and settings.
Incoming Time Code display (Session Setup window)
Chapter 2: Installation and Configuration
21
22
SYNC HD Guide
chapter 3
SYNC Peripheral Hardware and Software
SYNC Peripheral Front Panel
Power
Clock Reference
Switch
Clock Reference
LEDs
Generator/Parameter
Controls
Loop
Master
Sample Rate
LEDs
Positional Reference
Switch
Time Code
Display
Positional
Reference
LEDs
Frame Rate
Switch
Drop Frame Status LEDs
LED
Frame
Rate
LEDs
Figure 1. SYNC HD front panel
Controls and Displays
Clock Reference Switch and LEDs
All SYNC peripheral local controls are on the
front panel. For information on back panel connectors and setup, see Chapter 2, “Installation
and Configuration.”
This switch selects the SYNC peripheral clock
reference, as indicated by the Clock Reference
LEDs. Available clock reference inputs include:
Power Switch
When the SYNC peripheral power switch is
pressed in, power is on; when the switch is out,
power is off.
• Video Ref
• SYNC HD: (Green = SD, Yellow = HD)
• SYNC I/O: SD only
• Video In
• LTC (Linear Time Code)
• Digital
The LED ring around the power switch is orange
while the SYNC peripheral is powering up, or
while firmware is being updated. The LED ring is
green when the SYNC peripheral is ready for
use.
• SYNC HD: Word/AES
(Green = Word, Yellow = AES/EBU)
• SYNC I/O: Digital (Word or AES/EBU)
• Pilot
• Bi-phase/Tach
• Internal/VSO
• Loop Sync
Chapter 3: SYNC Peripheral Hardware and Software
23
Table 4. Sample Rates at Pull Up and Pull Down Settings
Sample Rate
Pull Up/Down
44100
48000
88200
96000
176400
192000
+4.1667%
and +0.1%
45983
50050
91967
100100
n/a
n/a
+4.1667%
45938
50000
91875
100000
n/a
n/a
+4.1667%
and –0.1%
45892
49950
91783
99900
n/a
n/a
+0.1%
44144
48048
88288
96096
176576
192192
–0.1%
44056
47952
88112
95904
176224
191808
–4.0% and
+0.1%
42378
46126
84757
92252
n/a
n/a
–4.0%
42336
46080
84672
92160
n/a
n/a
–4.0% and
–0.1%
42294
46034
84587
92068
n/a
n/a
Loop Master Indicator
Time Code Display
When lit, this LED indicates that the SYNC peripheral is the Pro Tools Loop Master device.
This 7-segment, multifunction LED is the SYNC
peripheral time code and parameter display.
Sample Rate LEDs
These green or yellow LEDs show the current
SYNC peripheral sample rate. Pull Up and Pull
Down are available for all sample rate settings,
indicated by the corresponding LED. Table 4
(below) shows the actual sample rates when
pulled up or down.
Generator/Parameter Controls
These four switches provide direct access to
many SYNC peripheral functions, including
time code generator settings, PAL/NTSC selection, sample rate and more. The Time Code LED
display shows the current mode, selected parameter, or setting.
24
SYNC HD Guide
Time Code The current positional reference (internal or external), is displayed in hours:minutes:seconds:frames. Odd/even field distinction
is indicated using a decimal point to the right of
the frames display. A lit decimal point to the
right of frames indicates an even-numbered
field; no decimal point indicates an odd-numbered field. When the SYNC peripheral is in
Auto Switch LTC/VITC mode, the decimal point
to the right of “minutes” illuminates.
The SYNC peripheral Time Code Display always
displays actual incoming time code, regardless
of any External Time Code Offsets settings that
are applied in Pro Tools.
Parameters and Values When configuring a
SYNC peripheral with the Set, Run/Stop and
other parameter controls, the LED display shows
parameter names, values, and other data.
For a table identifying each LED abbreviation
and function, see “Parameters” on page 59.
Positional Reference Switch
This switch selects the positional reference
source, as indicated by the Positional Reference
LEDs. Choices include LTC, VITC, Auto Switch
Bi-phase, and Generate.
In Auto Switch LTC/VITC mode, both the LTC
and VITC LEDs light while the SYNC peripheral
determines which source it will use. Either the
LTC or the VITC LED will remain lit to indicate
the chosen positional reference.
Frame Rate Switch
This switch selects the time code frame rate and
format (drop-frame or non drop-frame). The active choice is displayed by the Frame Rate and
DF (drop frame) LEDs.
Frame Rate LEDs and DF Indicator
These display the current SYNC peripheral
frame rate: 30, 29.97, 25, or 24 fps are indicated
by four green LEDs. The DF LED indicates dropframe (lit) or non drop-frame (unlit). The 24 fps
LED flashes to indicate 23.976 fps.
Status LEDs
• SYNC HD: The Locked LED flashes yellow
if the selected clock reference source is
missing or out of lockable frequency range.
• SYNC I/O: The Locked LED flashes green if
the selected clock reference source is missing or out of lockable frequency range.
Speed Cal (Speed Calibration) This LED lights to
indicate the status of the clock reference:
• Yellow Solid: SYNC peripheral is locked and
that the clock reference is within 0.025% of
the expected rate
• Yellow Flashing Fast: SYNC peripheral is
locked, but the clock reference is between
0.025% and 4% faster than the expected
rate
• Yellow Flashing Slow: SYNC peripheral is
locked, but the clock reference is between
0.025% and 4% slower than the expected
rate
• Red Flashing Fast: SYNC peripheral is
locked, but the clock reference is more than
4% faster than the expected rate
• Red Flashing Slow: SYNC peripheral is
locked, but the clock reference is more than
4% slower than the expected rate
• Unlit: SYNC peripheral is not locked to the
chosen clock reference
Remote Mode This green LED lights when the
SYNC peripheral is set to Remote-Only/Front
Panel Lockout mode. While this LED is lit, the
front panel switches will have no effect.
For more information, see “SYNC Setup Dialog Controls and Displays” on page 28.
These LEDs show the current state of the SYNC
peripheral in relation to clock references. Indicators include:
Locked This LED lights solid green when the
SYNC peripheral is locked to the selected clock
reference.
Chapter 3: SYNC Peripheral Hardware and Software
25
SYNC Peripheral Back Panel
Video Ref
Bi-Phase/Tach
GPI/Pilot
Video
In/Out
Host Serial
LTC In/Out
AES/EBU
In/Out
MTC Out
Word Clock
In/Out
9-Pin Out 1
9-Pin Out 2
Loop Sync
In/Out
AC Power
Figure 2. SYNC HD Back Panel
Bi-Phase/Tach/GPI/Pilot
This is an accessory port for Bi-Phase, Tach, and
Pilot signals (specific cables are required for different applications). This connector is also used
for GPI input, output (including Fader Start),
and thru signals. This port handles up to 12 V
Bi-Phase.
Refer to Appendix C, “Wiring Diagrams
and Pin Assignments” for wiring information and other specifications for this port.
Video Reference
Receives a signal from a video source, such as a
black burst (house sync) generator or a standard
video signal.
Video Ref input can be used for clock reference,
as well as for frame-edge reference when synchronizing with 9-pin devices.
The following signal types are supported:
• SYNC HD: SD (NTSC/PAL) or HD (tri-level
or bi-level) signal
• SYNC I/O: SD (NTSC/PAL) signal only
26
SYNC HD Guide
The Video Ref ports are an un-terminated loopthrough that allows black burst or other video
reference to be passed to another device. The
second port outputs whatever signal is present
first port, whether the SYNC peripheral is on or
off.
When you connect a signal to one of these
ports, you must do one of the following:
• Connect a 75-ohm BNC terminator (included with the SYNC peripheral) to the
other Video Ref port
– or –
• Make sure another terminated video device
is fed from the other Video Ref port.
If the SYNC peripheral is the last device in
the video sync chain, a 75-ohm BNC terminator must be attached to this connector.
Host Serial Port
LTC In/Out
The Host Serial port is a bidirectional (in/out)
port to connect the SYNC peripheral to the
DigiSerial Port on a HD Core card. When not being used with Pro Tools, the SYNC peripheral
Host Serial port can be connected to a standard
serial port on a supported computer to run the
SYNC Setup software utility (Windows only).
LTC In Receives a Linear Time Code (LTC)
source, balanced or unbalanced analog, for positional and/or clock reference. This port is often
used to receive LTC from an audio track on an
external deck or the address track of a VTR. Adjustable LTC servo gain is available in Pro Tools
and from the front panel.
Video In/Out
Video In Receives a signal from an SD
(NTSC/PAL) video source for clock or VITC positional reference input, or for generating a window burn. This connector is internally terminated at 75 ohms.
The Video In connector does not accept HD reference signals.
LTC Out Outputs linear time code, in balanced
or unbalanced analog audio format. The SYNC
peripheral can be set to mirror incoming LC on
this port, or to generate LTC based on incoming
serial time code.
LTC output level is adjustable from the Synchronization page of the Peripherals dialog in
Pro Tools, the controls on the front panel of the
SYNC peripheral, or the SYNC Setup software
utility (Windows only).
Video Out Outputs the current Video In signal.
This output can also carry VITC and/or Window
Burn information if those features are enabled.
See Appendix C, “Wiring Diagrams and Pin Assignments” for wiring details.
MTC Out
AES/EBU In/Out
The MTC Out outputs MIDI Time Code (MTC)
only. No other MIDI data appears at this output.
MTC output can be regenerated while the SYNC
peripheral is locked to any supported positional
reference and clock reference, or internally generated in Generate mode, in which case MTC
output follows generator run/stop. This port is
intended to supply MTC from the SYNC peripheral to external sequencers or other MIDI
devices.
AES/EBU In Receives an AES/EBU digital audio
signal, for clock reference purposes only. The
SYNC peripheral utilizes only the signal's clock
information, not the audio information. If digital audio information is present at this input, it
will be ignored and not passed through to the
AES/EBU digital output connector.
AES/EBU Out Outputs a silent (all bits OFF)
AES/EBU audio signal whose sample rate exactly
matches the SYNC peripheral sample clock
MTC is output continuously whenever the
SYNC peripheral is generating time code. This
output can be muted when time code (LTC) is
idle. See “MTC Output and Idle Muting” on
page 56 for details.
Chapter 3: SYNC Peripheral Hardware and Software
27
Word Clock In/Out
AC Power
Word Clock In Receives (1x sample rate) Word
Clock, for clock reference purposes only. Word
Clock is often used with external digital consoles and digital tape machines.
SYNC peripherals accept a standard power cable
and are auto voltage-selecting (100V to 240V).
Word Clock Out Outputs 1x sample rate Word
Clock information (for Word-clock capable peripherals) or 256x Slave Clock information (for
Legacy peripherals). This port is configured using the controls on the front panel of the SYNC
peripheral or the SYNC Setup software utility
(Windows only).
9-Pin Out 1 and 2
For Digidesign MachineControl-enabled systems, these two ports connect directly to external 9-pin transports, and provide limited Serial
Deck control capability. Only one of these ports
can be used at a time.
SYNC Setup Software Utility
(Windows Only)
This section reviews the SYNC Setup controls
and displays included with the SYNC Setup software utility.
For SYNC Setup software utility requirements,
see “Software Installation” on page 12.
SYNC Setup Dialog Controls and
Displays
For best performance on Windows-based
systems, use the COM ports on the Windows
computer.
For best performance on Mac-based systems, use
a Keyspan USA28XG USB serial adapter.
See the MachineControl Guide for more
information.
Loop Sync In/Out
Loop Sync is the clock signal used to synchronize Pro Tools|HD interfaces.
Loop Sync In Receives Loop Sync from any
Pro Tools|HD interface.
Loop Sync Out Provides Loop Sync. This port
connects to the primary Pro Tools|HD interface.
SYNC Setup dialog (SYNC Setup software utility)
28
SYNC HD Guide
SYNC Setup Software Utility Help
„ Right-click anywhere in the SYNC Setup dialog and select Help, or press the F1 key.
Positional Reference
This control selects the SYNC peripheral positional reference.
Time Code Window
Frame Rate
The time code display mirrors the LED Time
Code Display on the SYNC peripheral front
panel, displaying (in hours:minutes:seconds:frames) the time code address of the current positional reference.
This control selects the frames-per-second (fps)
rate of external (or internally generated) time
code.
When the SYNC peripheral is reading odd-numbered fields, the separator changes from a normal colon (:) to a period (.); when reading evennumbered fields, the separator returns to a colon (:). Odd/even status is only available while
reading VITC, and only when VITC is within a
speed range from zero to about 50% of playback
speed.
This display shows the current state of the SYNC
Setup software utility in relation to the SYNC
peripheral and external devices, as follows:
Clock Reference
This control selects the SYNC peripheral clock
reference.
Sample Rate
This control selects the SYNC peripheral sample
rate (or the Pro Tools session sample rate, if applicable).
Pull Rate
This control Enables Pull Up or Pull Down for
the current sample rate.
Word Clock Out
This control configures the SYNC peripheral
Word Clock Output between 256x (Super Clock)
and the current session sample rate (1x at 44.1
kHz, or 1x at 48 kHz). Only Legacy audio interfaces require 256x Super Clock.
Status Display
Resolver Locked Lights when the SYNC peripheral is locked to the chosen external clock reference, or to its Internal clock reference.
Speed Calibration Lights when the SYNC peripheral system clock and all output clocks are at a
frequency that corresponds with the chosen
sample rate. Capable of indicating mismatch of
pull-up, pull-down and frame rate.
For details about Speed Calibration characteristics, see “Status LEDs” on page 25.
Regenerator Locked Lights when the SYNC peripheral is regenerating time code at its video,
LTC, and MTC outputs locked with the incoming positional reference source. Also lit whenever the SYNC peripheral is generating time
code internally.
Connected to SYNC I/O Lights when the SYNC
Setup dialog is the frontmost window and is
communicating with the SYNC peripheral.
Waiting for SYNC I/O Lights when the SYNC
Setup dialog is the frontmost window and is unable to communicate with the SYNC peripheral.
Chapter 3: SYNC Peripheral Hardware and Software
29
Port Relinquished Lights when the SYNC Setup
dialog is not the frontmost window or is unable
to allocate a serial port with which to communicate with the SYNC peripheral.
LTC Output Level
This control adjusts the analog audio level of the
SYNC peripheral LTC output, from –24 dBu to
+9 dBu.
Freewheel Duration
This control sets the period of time for which
the SYNC peripheral will continue to supply positional reference data after an external source is
interrupted or stopped (also referred to as Time
Code Freewheel in Pro Tools).
VITC Generate Lines
This control determines the line pair of the outgoing video signal onto which the SYNC peripheral inserts VITC. Normally, this should be left
at the default (and preferred) setting of 14/16.
VITC Insertion Enabled
When selected, VITC will be inserted into the
outgoing video signal—assuming that a video
signal is present at a SYNC peripheral video input, and that the SYNC peripheral is in a valid
mode for inserting VITC. The only invalid positional reference modes are VITC or Auto Switch
LTC/VITC. SYNC peripherals cannot read VITC
and generate new VITC at the same time.
Pitch Memory Enabled
Video Format
This control selects the format (NTSC or PAL) for
both the incoming and outgoing video signals.
‹ NTSC is used in North and South America, Japan, and certain other parts of the world.
‹ PAL is used in most of Europe, Asia, and Africa. Users of SECAM video (for France, Russia,
and certain other parts of the world) should select PAL.
VITC Read Lines
This control determines which line pair of incoming video signal is used for the VITC source.
When set to Auto, the SYNC peripheral will
search for the first valid line pair automatically.
Alternatively, this value can be set to specific
VITC line pairs.
30
SYNC HD Guide
When selected, the SYNC peripheral will remain
at a pitch (sample rate) that corresponds to the
last known incoming time code speed. When
deselected, the SYNC peripheral will revert to
the selected sample rate. If Pitch Memory is disabled and the selected external clock reference is
not available, then the SYNC peripheral will revert to the selected internal sample rate setting.
Idle MTC Enabled
Controls MTC Output during idle (play
stopped). When enabled, MTC is continuously
output. When not enabled, MTC output is
muted when playback is idle. See “MTC Output
and Idle Muting” on page 56 for details.
Dub Window
Variable Speed Override (VSO)
Settings for the SYNC peripheral character generator/window dub features. (These controls are
also available from within the Pro Tools Peripherals dialog.)
Used to change (or varispeed) the rate of the
SYNC peripheral internal crystal-referenced
clock. This change is measured in cents, or hundredths of a semitone. VSO is available at any
Positional reference setting, but only when the
Clock Reference is set to Internal/VSO.
For more information, see “Generating a
Window Dub” on page 56.
Bi-Phase/Tach Parameters
Used for specialized applications that involve
film or other equipment that output BiPhase/Tach information. These parameters must
be set to match the Bi-Phase or Tach source to
achieve lock.
The available range of VSO values depends on
the session sample rate and any pull up/pull
down factors currently applied to the session.
For more information, see “Variable Speed
Override (VSO)” on page 42.
Generator/Bi-Phase Preset
Serves two functions, as determined by the current SYNC peripheral mode:
Generate Mode Sets the time code start time directly by clicking in the Hrs:Min:Sec:Frm fields
and typing in a value. The Tab key will cycle
though the fields.
Bi-Phase/Tach Mode Zeros the time code
counter, to allow the SYNC peripheral to generate time code in relation to the pulses of the incoming Bi-Phase/Tach information. Establishes
a time code start point (first frame of a reel, for
example).
Chapter 3: SYNC Peripheral Hardware and Software
31
32
SYNC HD Guide
chapter 4
Using SYNC Peripherals
SYNC peripheral settings can be controlled in
three ways:
About SYNC Setup Software Utility
Remote-Only Mode
From Pro Tools Provides access to most SYNC peripheral controls from within the Pro Tools Session Setup window or the Synchronization page
of the Peripherals window.
When the default Remote-Only Mode (Front
Panel Lockout) is enabled in the SYNC Setup
software utility Preferences window, none of the
front panel switches are operational, and the
Remote Only LED is lit.
From the SYNC Peripheral Front Panel Provides
access to most controls from the front panel
when using the SYNC peripheral in Standalone
mode.
From the SYNC Setup Software Utility
(Windows Only) This optional utility provides remote access to all SYNC peripheral controls
from a supported Windows computer.
To exit Remote-Only mode from the front panel:
„ Simultaneously press and hold the Clock Reference, Positional Reference, and Frame Rate
front panel switches.
The SYNC peripheral is disengaged from Remote-Only mode. This is useful when the host
computer is not easily accessible.
For a list of controls supported with each
method, see “SYNC Peripheral Controls in
Pro Tools, SYNC Setup Software Utility, and the
Front Panel” on page 34.
Chapter 4: Using SYNC Peripherals
33
SYNC Peripheral Controls in Pro Tools, SYNC Setup Software
Utility, and the Front Panel
Table 5. SYNC Peripheral controls in Pro Tools, SYNC Setup software utility, and the front panel
Available from/in:
Pro Tools
Front Panel
SYNC Setup Software
Utility
no
yes
no
Clock References
all (Session Setup)
all
all
Positional References
all (Session Setup)
all
all
all
all
all
yes (Session Setup)
yes
yes
no
yes
(“Base Clock”)
yes
(“Word Clock Out”)
Parameters
Device ID (SYNC HD Only)
Sample Rates
Pull Rates
Base Clock
(Word Clock Out)
Frame Rates
all (Session Setup)
all
all
LTC Output level
yes (Peripherals/Sync)
yes
yes
LTC Servo gain
yes (Session Setup)
yes
no
Freewheel duration
yes (Session Setup)
yes
yes
Video Format (NTSC/PAL)
yes (Session Setup)
yes
yes
VITC Read Lines
yes (Peripherals/Sync)
yes
yes
VITC Generate Lines
yes (Peripherals/Sync)
yes
yes
VITC Insertion Enable
yes (Peripherals/Sync)
yes
yes
Pitch Memory Enable
yes (Peripherals/Sync)
yes
yes
Window Dub
all (Peripherals/Sync)
on/off only
yes, all
Bi-Phase/Tach Pulses/Frame
yes (Peripherals/Sync)
yes
yes
Bi-Phase/Tach Wiring
yes (Peripherals/Sync)
no
no
Gen/Bi-Phase Preset
yes (Session Setup)
yes
yes
GPI
yes
no
no
VSO
yes (Session Setup)
no
yes
yes (Peripherals/Sync)
yes
yes
no
yes
no
Idle MTC Enable
USD Compatibility Mode
(SYNC I/O Only)
34
SYNC HD Guide
When a parameter value is visible Press Set once
to set the value for that parameter and return
the Display to time code.
Front Panel
Generator/Parameter
Switches
The Generator/Parameter controls are labeled
Set, Down, Up, and Run/Stop/Clear/Esc. In addition to their primary generator functions, these
switches provide front panel access to most
SYNC peripheral parameters.
Features Not Accessible from the Front Panel
Controls
The front panel provides access to all SYNC peripheral features except the following, which
can be controlled using Pro Tools or the SYNC
Setup software utility (available on Windows
only):
• Remote-Only Mode/Front Panel Lockout
• Changing Window Burn Size, Vertical Position, Horizontal Position, and Color
Down and Up
The Down and Up switches scroll through parameter names or values:
When a parameter name is visible Press the
Down and Up switches to scroll through the parameter names (for example, from “SET GEn” to
“VIdEo SY”).
When a parameter value is visible Press the
Down and Up switches to scroll through the
range of values for the current parameter.
When entering time code values Press the Down
and Up switches simultaneously to cycle
through the hours:minutes:seconds:frames
fields in the time code display.
• GPI (General Purpose Interface) functions
Run/Stop/Clear/Esc
• Variable Speed Offset (VSO)
The Run/Stop/Clear/Esc switch has several functions, depending on the current mode:
For a listing of available parameters, see Table 5
on page 34.
LTC
POSITIONAL
REFERENCE
VITC
BI-PHASE
GENERATE
SET
DOWN
UP
While generating time code Press
Run/Stop/Clear/Esc to start or stop the time
code generator when the SYNC peripheral is in
Generator Preset mode.
DF
RUN/STOP
CLEAR
Generator/Parameter Switches
Set
The Set switch has three primary functions:
While time code is being displayed Press
Run/Stop/Clear/Esc to reset the counter whenever time code is visible in the LED Time Code
display.
Otherwise, the Run/Stop/Clear/Esc switch serves
as a Cancel switch.
When time code is displayed Press Set once to
change the Display from time code to parameter
names.
When a parameter name is visible Press Set once
to change the Display to show parameter values.
Chapter 4: Using SYNC Peripherals
35
Edit Mode
To enter Parameter/Value Edit mode:
„ Press Set (when time code numbers are visible
in the LED Time Code Display). The first press
displays the first parameter name, “Set Gen,”
(for the time code generator).
Clock References and Options
The following sections explain each clock reference choice in detail. For basic instructions on
selecting the clock or positional reference, setting frame rate, or setting the SYNC peripheral
sample rate, see Chapter 2, “Installation and
Configuration.”
The first page of Generator Parameter controls
Video Clock Options
A different parameter may be displayed, depending on the previous SYNC peripheral settings.
SYNC Peripherals provide two video inputs,
Video Ref and Video In, which are each selectable
for clock reference.
To scroll through parameter choices:
For House Video Reference (Black Burst) Use the
Video Ref connector.
„ Press the Up or Down switches to scroll
through available parameters. Holding the
switch scrolls through the parameters.
To select a parameter to edit:
„ When the desired parameter is displayed,
press Set. This will access that parameter’s current setting.
The Video Ref ports are a non-terminated
loop-through connection. If the second
Video Ref port is not used, then you must
terminate it using the included 75-ohm
BNC terminator.
For Incoming Video Use the Video In connector.
Serial Time Code with MachineControl
To edit parameter values:
With parameter values displayed, press the Up
or Down switches to cycle through the available
values.
„
For a complete listing of front panel Generator/Parameter controls, see Chapter 5,
“Additional Operational Information.”
MachineControl-equipped Pro Tools systems
can synchronize to serial time code through either of the SYNC peripheral 9-pin ports, or a
Keyspan USA28XG USB serial adapter (Mac) or
COM port (Windows). When using MachineControl, you can set serial time code as the positional reference, lock the SYNC peripheral to a
Video Reference, and clock Pro Tools to external
Word clock.
MachineControl also provides 9-Pin Deck
Emulation mode, but this mode is not supported through either of the SYNC peripheral
9-pin ports. See the Digidesign MachineControl Guide for more information.
36
SYNC HD Guide
Video and Clock Reference
(SD Video Only)
There are two ways to configure SYNC peripherals to use Video Reference and Word Clock:
If you have only a single SD (standard definition) video source, and if the video source and
the SYNC peripheral have a common video reference, then you can connect the SD video signal to the Video In connector.
Clock Source via the SYNC Peripheral
In situations where a common Word clock is required between Pro Tools systems or consoles,
you can still use Video Reference to maintain
sample accurate sync while using:
1 In the Format section of the Session Setup win-
• the Satellite Link option to synchronize
multiple Pro Tools systems
• Pro Tools as a dubber or stem recorder in
Remote Mode or Deck Control mode
• a Pro Tools system in a Video Satellite configuration (if digital audio interconnects
are required)
Video Reference and Frame Edge
Alignment
When video reference is present, Pro Tools automatically aligns to frame edge.
When the SYNC peripheral Video Ref connector
is receiving a valid video signal, the Ref Present
indicator in the Session Setup window lights.
Configuring SYNC Peripherals to use
Video Reference and Word Clock
If the video reference and the Word clock reference are derived from the same house sync generator, you can configure the SYNC peripheral
to simultaneously use Video Reference for frame
alignment and Word clock for clock reference.
(SYNC HD Only)
To configure Pro Tools to use video reference and
word clock:
dow, select SYNC from the Clock Source pop-up
menu.
2 In the SYNC Setup section of the Session Setup
window, select Word Clock or AES/EBU from the
Clock Reference pop-up menu.
3 In the SYNC Setup section of the Session Setup
window, select the appropriate format from the
Video Ref Format pop-up menu.
Clock Source via an HD Peripheral
(SYNC HD or SYNC I/O)
To configure Pro Tools to use video reference and
word clock:
1 In the Format section of the Session Setup win-
dow, select the Interface (192 I/O or 96 I/O) >
Word Clock or AES/EBU from the Clock Source
pop-up menu.
2 In the SYNC Setup section of the Session Setup
window, select Loop Sync from the Clock Reference pop-up menu.
3 In the SYNC Setup section of the Session Setup
window, select the appropriate format from the
Video Ref Format pop-up menu.
Chapter 4: Using SYNC Peripherals
37
Digital Clock (AES/EBU or Word
Clock) Options
To resolve the SYNC peripheral to external
AES/EBU or Word Clock:
From Pro Tools:
„ In the SYNC Setup section of the Session Setup
window, select the appropriate digital clock reference from the Clock Reference pop-up menu.
From the front panel:
1 Press the Clock Reference switch to select
Word/AES (SYNC HD) or Digital (SYNC I/O).
2 Press Set, and use the Up and Down switches
to display Digital Reference (“dI6 rEF”).
3 Press Set. The LED Time Code Display displays
the current digital reference.
4 Press the Up or Down switches to select the
digital clock you want to use.
• AES/EBU (“AES-E8U”)
– or –
• Word Clock (“I CLOC”)
5 Press Set.
From the SYNC Setup software utility
(Windows only):
„ Select the appropriate digital clock reference
option from the SYNC Setup Clock Ref pop-up
menu.
If the chosen clock reference source is unavailable, or the current configuration is not valid,
the Locked LED on the right side of the SYNC
peripheral front panel flashes.
About Digital Clock
AES/EBU The SYNC peripheral AES/EBU In connector only recognizes and uses the clock portion of an incoming AES/EBU audio signal. All
audio information will be ignored and will not
be passed to the SYNC peripheral AES/EBU Out
connector.
Word Clock Word Clock is a digital clock reference signal that runs at 1x sample rate (44.1, 48,
88.2, 96, 176.4, or 192 kHz). Pro Tools|HD interfaces have dedicated BNC-style Word Clock
connectors. A wide variety of professional audio
devices have Word Clock connectors, including
digital mixing consoles, DASH-standard digital
multitrack tape recorders and MDMs (modular
digital multitrack recorders).
Slave Clock (256x)
Slave Clock (or Super Clock) is a Digidesign proprietary clock format used by legacy Digidesign
audio interfaces (such as 888|24, 882|20, 1622,
and ADAT Bridge) that runs at 256 times the
sample rate.
When using legacy interfaces with a SYNC peripheral and Pro Tools|HD, your master HD audio interface (192 I/O, 192 Digital I/O, 96 I/O, or
96i I/O) should supply Slave Clock to the first
legacy device through its External Clock Out
connector, configured for 256x Slave Clock (see
“Base Clock” on page 61 for more information).
Pro Tools|HD audio interfaces are always connected using Loop Sync (see “Clock for
Pro Tools Audio Interfaces” on page 8 for more
information).
For additional digital clock signal information, see “Digital Clock Signal Types” on
page 73.
38
SYNC HD Guide
LTC and Clock Reference
Servo Gain settings include the following:
LTC can provide both positional and clock information in the same time code signal. LTC can
be recorded onto and played back from an analog track, or a VTR audio, address or cue track.
LTC cannot be read when the reference deck is
stopped, or playing back at slow or fast wind
speeds (roughly 10x playback speed). Pro Tools
will not lock until the LTC signal is close to playback speed.
LTC 0 (fastest) Allows the quickest resolving to
incoming LTC, but with greater jitter. This is the
default setting, and should be used when fast
lock ups are critical.
LTC 1 Provides an intermediate fast setting.
LTC 2 (average) Offers a compromise of lock up
time and jitter quality.
LTC 3 Provides an intermediate slow setting.
While resolving to LTC as clock reference, the
SYNC peripheral provides five options to optimize your system for different types of tasks.
This lets you choose between faster response (for
when fast lock-up time is critical), or highest
sound quality (during critical laybacks, for example).
LTC Servo Gain
The Session Setup window provides a submenu
for LTC Clock Reference choices. The five
choices provide different servo gain settings to
reduce the effects of jitter when locking to linear
time code.
In Standalone mode, these settings are also
available from the front panel and from the
SYNC Setup software utility.
LTC 4 (smoothest) Offers the lowest jitter from
LTC resolve, but can take six to ten seconds to
achieve full resolve. This setting is most appropriate when loading audio from an analog master, where reducing or eliminating jitter is more
important than lock speed. When using this setting, be sure to allow adequate pre-roll before
punching in.
To resolve a SYNC peripheral to Linear Time Code;
From Pro Tools:
„ In the Sync Setup section of the Session Setup
window, choose an LTC and Servo Gain setting
from the Clock Reference pop-up menu.
From the front panel:
1 Press the Clock Reference switch to select LTC.
2 Set the LTC Servo Gain from the front panel.
See “Servo Gain” on page 63.
From the SYNC Setup software utility
(Windows only):
Clock Reference LTC options in Session Setup
1 Select Linear Timecode (LTC) from the SYNC
Setup Clock Ref pop-up menu.
2 Choose a value from the SYNC Setup LTC
Servo Gain Offset pop-up menu.
Chapter 4: Using SYNC Peripherals
39
Adjusting LTC Output Level/Gain
Pilot Tone
To adjust LTC output level/gain:
SYNC peripherals can resolve to an external Pilot Tone signal for clock reference, for synchronizing to (or transferring audio from) certain
types of open-reel audio tape recorders. Pilot
Tone is basically a 60 Hz (NTSC) or 50 Hz (PAL)
sine wave tone. Pilot Tone is used on location
film shoots to establish a common sync reference between a film or video camera with a portable 1/4-inch analog ATR. Pilot Tone contains
no positional information; it provides only
clock reference.
From Pro Tools:
1 Choose Setup > Peripherals and click Synchronization.
2 Choose a value from the LTC Output Level pop-
up menu.
3 Click OK.
From the front panel:
1 Press Set, and use the Up and Down switches
to display one of the following:
• SYNC HD: LTC Level (“L7C LEUL”)
– or –
• SYNC I/O: LTC Gain (“L7C GAIn”)
2 Press Set.
3 Press the Up or Down switches to scroll
through the available values (in 3 dBu steps).
4 Press Set.
For further information on LTC signals, see
“LTC Signals” on page 72.
The SYNC peripheral decides whether to use
60 Hz or 50 Hz as the pilot tone reference frequency according to the setting of the Video
Format. When set to PAL, the pilot tone frequency is assumed to be 50 Hz. When set to
NTSC, 60 Hz is assumed.
Connect the Pilot Tone reference source to the
SYNC peripheral Bi-Phase/Tach/GPI/Pilot port.
To resolve the SYNC peripheral to Pilot Tone:
From Pro Tools:
„ In the SYNC Setup section of the Session Setup
window, select Pilot Tone from the Clock Reference pop-up menu.
From the front panel:
„ Press the Clock Reference switch to select
Pilot.
From the SYNC Setup software utility
(Windows only):
„ Select Pilot Tone from the SYNC Setup
Clock Ref pop-up menu.
For additional Pilot Tone information, see
“Pilot Tone” on page 75 in Appendix A.
40
SYNC HD Guide
Bi-Phase/Tach and Clock
Reference
The SYNC peripheral is able to resolve to
Bi-Phase/Tach information for use as a clock reference. Bi-Phase/Tach can synchronize positional reference, but you must provide a reference start address (see “Bi-Phase Position
Trimming” on page 48 for other requirements).
Pro Tools will not lock until the Bi-Phase signal
is present.
To configure Bi-Phase/Tach for the SYNC
peripheral clock reference:
From the SYNC Setup software utility
(Windows only):
1 Select Bi-Phase/Tach from the SYNC Setup
Clock Ref pop-up menu.
2 Select the appropriate Pulse Per Frame and Input Signals parameters, as described in
“Bi-Phase/Tach Starting Frame” on page 47 and
“Bi-Phase/Tach Signal” on page 47.
Typically, when you use Bi-Phase/Tach as the
clock reference you will also be using it as the
positional reference (see “Bi-Phase/Tach” on
page 46.).
From Pro Tools:
For additional Bi-Phase/Tach signal information, see “Bi-Phase/Tach” on page 74 in
Appendix A.
1 In the SYNC Setup section of the Pro Tools
Session Setup window, select Bi-Phase from the
Positional Reference pop-up menu.
2 Choose Setup > Peripherals and click Synchro-
nization.
To resolve a SYNC peripheral to its internal clock:
From Pro Tools:
In the SYNC Setup section of the Pro Tools Session Setup window, select Internal/VSO from the
Clock Reference pop-up menu.
„
3 Enter the Pulses Per Frame and choose the In-
put Signal setting, as described in
“Bi-Phase/Tach Starting Frame” on page 47 and
“Bi-Phase/Tach Signal” on page 47.
From the front panel:
1 Press the Clock Reference switch to select
Bi-Phase/Tach.
2 Select the appropriate Pulse Per Frame and Input Signals parameters, as described in
“Bi-Phase/Tach Starting Frame” on page 47 and
“Bi-Phase/Tach Signal” on page 47.
From the front panel:
„ Press the Clock Reference switch to select
Internal/VSO.
From the SYNC Setup software utility
(Windows only):
„ Select Internal/VSO from the SYNC Setup
Clock Ref pop-up menu.
If the Bi-Phase/Tach reference clock source
is not valid for any reason (such as a poor
connection or other signal transmission
problem), the Locked LED on the far-right
of the SYNC peripheral front panel flashes.
SYNC peripherals accept up to 12V at the
Bi-Phase input.
Chapter 4: Using SYNC Peripherals
41
Variable Speed Override (VSO)
To fine-tune the speed (and pitch) of Pro Tools
or any device receiving its clock reference from
the SYNC peripheral, you can varispeed the rate
of the SYNC peripheral’s crystal-referenced internal clock.
From the SYNC Setup software utility
(Windows only):
1 In the Setup Variable Speed Override section,
select VSO Enabled.
VSO is available at any Positional Reference setting. VSO is not available from the SYNC peripheral front panel controls, but can be controlled
directly from Pro Tools or with the SYNC Setup
software utility (Windows only).
Variable Speed Override controls (SYNC Setup software
utility)
To varispeed the SYNC peripheral internal clock
in semitone or cent increments. The actual Word
clock output frequency is shown near the sliders.
From Pro Tools:
1 In the Sync Setup section of the Session Setup
window, make sure the Clock Reference is set to
Internal/VSO.
2 Select the VSO option.
3 Use the on-screen slider to adjust the va-
rispeed value in semitones and cents.
2 Use the sliders to adjust the varispeed values
– or –
Enter the value in semitones and cents using the
editable fields. Varispeed range changes with
sample rate, as shown in the following table.
Effective VSO rates
Sample Rate
(kHz)
44.1
Rate
Type
Min. (Hz)
Max (Hz)
1x
40000
50500
2x
80000
101000
4x
160000
202000
48
88.2
96
176.4
Variable Speed Override controls (Pro Tools)
192
The SYNC peripheral will only output rates
within the limits of the current sample rate. If a
varispeed value results in an output frequency
(sample rate) that is below or above the limits
for the current sample rate, the frequency display turns red.
3 Click Set.
42
SYNC HD Guide
Regulating Output Sample Rate with
Pitch Memory
Pitch Memory holds the output sample rate
steady even when the Clock Reference is unavailable or has gone out of lock range.
‹ When Pitch Memory is not enabled, the output sample rate would return to the nominal
sample rate setting (for example, exactly
44.1 kHz) when the Clock Reference disappears
or goes out of lock range.
‹ When Pitch Memory is enabled, Pro Tools
continues to play and record at the resolved
sample rate even if the Clock Reference source
disappears.
‹ The SYNC peripheral retains the Pitch Memory setting, even when the unit is powered off
and on again, until you change it.
To configure Pitch Memory:
From Pro Tools:
1 Choose Setup > Peripherals and click Synchronization.
2 Select the Pitch Memory Enabled option.
3 Click OK.
From the front panel:
Positional Reference
and Options
The following sections provide additional information for each available Positional Reference
format.
Linear Time Code (LTC)
LTC is often striped onto an ATR or VTR audio
track. Professional VTRs typically have an address or cue track, intended for LTC. If you are
working with a standard audio tape, you’ll almost certainly be working with LTC. If you’re
working with a videotape, you may be able to
work with either LTC or VITC, or both.
LTC can also be generated as an interpolation of
Absolute code. This is how time code DAT machines, DA-88s, and many digital VTRs work.
LTC is delivered to the SYNC peripheral as a series of audio pulses, regardless of how it is stored
or generated.
LTC can be used simultaneously as a positional
reference and a clock reference.
To use LTC as the SYNC peripheral positional
reference:
1 Press Set, and use the Up and Down switches
From Pro Tools:
to display Pitch Hold (“PICH HLd”).
„ In the SYNC Setup section of the Session Setup
window, choose LTC from the Positional Reference pop-up menu.
2 Press Set.
3 Press the Up or Down switches to toggle be-
tween On and Off.
4 Press Set.
From the front panel:
„ Press the Positional Reference switch to select
LTC.
From the SYNC Setup software utility
(Windows only):
„
Click Pitch Memory Enabled.
Chapter 4: Using SYNC Peripherals
43
From the SYNC Setup software utility
(Windows only):
„ Select Linear Time Code (LTC) from the SYNC
Setup Positional Ref pop-up menu.
Make sure you select the appropriate clock reference, sample rate, frame rate, and freewheel duration. Also make sure the LTC signal is routed
properly to the SYNC peripheral LTC In connector.
Freewheel Duration
Freewheel duration (time code freewheel) configures the SYNC peripheral for the maximum
number of frames (from 4 to 40 frames, in increments of 4) it should continue generating if time
code drops out or is otherwise interrupted. Freewheel settings are ignored when the SYNC peripheral is in Internal/Generate mode.
the SYNC peripheral will automatically set to 4;
if you enter a Freewheel value greater than 40,
the SYNC peripheral will automatically set to
40.
From the front panel:
1 Press Set, and use the Up and Down switches
to display Freewheel Length (“FrEE LEn”).
2 Press Set to display freewheel duration
choices.
3 Press the Up or Down switches to scroll
through available choices (from “4 Fr” or four
frames, to “40 Fr” or 40 frames).
4 Press Set.
From the SYNC Setup software utility
(Windows only):
„ Choose a value from the SYNC Setup Freewheel Duration pop-up menu.
Example of Time Code Freewheel
In a 30 fps Pro Tools session, if Freewheel Duration/Time Code Freewheel is 28 frames, the
SYNC peripheral will continue to generate until
either the incoming time code signal is restored,
or until 28 frames elapse, whichever occurs first.
To set the freewheel duration:
From Pro Tools:
In the Time Code Settings section of the Session Setup window, enter a number of frames for
time code Freewheel.
VITC and Positional Reference
Because VITC is time code information that is
embedded as part of the video signal, VITC can
be read when the VTR is paused or crawling
slowly. When working with Pro Tools, this
means that VITC can be used for Auto-Spotting
regions to particular video frames.
Video Ref vs. Video in
„
SYNC peripherals accept Freewheel duration
values from 4 to 40 frames, in increments of 4
frames, but Pro Tools allows duration values
from 1 to 120 frames (for MTC readers). If you
enter a Freewheel duration value lower than 4,
44
SYNC HD Guide
To ensure constant clock referencing, use
Video Ref input as your clock reference instead
of Video In, whenever possible. When using
Video Ref (and house sync), if the video picture
is lost, the SYNC peripheral will remain resolved
to the black burst signal at the Video Ref input.
To use VITC as the SYNC peripheral positional
reference:
From Pro Tools:
In the SYNC Setup section of the Session Setup
window, select VITC from the Positional Reference pop-up menu.
„
From the front panel:
„ Press the Positional Reference switch to select
VITC.
From the SYNC Setup software utility
(Windows only):
„ Select Vertical Interval Time Code (VITC) from
the SYNC Setup Positional Ref pop-up menu.
Additional VITC-Related Settings
SYNC Peripheral Settings Make sure to set the
appropriate clock reference, sample rate, frame
rate, and freewheel duration.
Connections and Sources Make sure that your
VITC-striped video signal, if any, is routed to the
Video In connector (not a Video Ref connector).
If you use a black burst signal as clock reference,
connect it to a Video Ref connector.
Digidesign recommends using Video Ref as your
Clock Reference (rather than Video In) when
working with VITC, because a blackburst signal
at the Video Ref input will always be present,
unlike the video signal at Video In, which may
disappear.
Auto LTC/VITC Positional
Reference
In Auto LTC/VITC mode, the SYNC peripheral
switches automatically between LTC and VITC
depending upon which is delivering the best
time code signal. This is indicated on the front
panel by the LTC and VITC positional reference
LEDs (both will be lit), and by a decimal point
between the minutes and seconds on the front
panel time code display.
VITC cannot be read at high speeds (shuttle
speeds, for example) while LTC can, and LTC
cannot be read at slow speeds (while VITC can
be read at slow speeds, and when parked). Auto
LTC/VITC provides the best of both LTC and
VITC without having to manually switch
settings.
If the same tape has different values for LTC
and VITC signals, make sure to run only referencing LTC by disabling Auto LTC/VITC.
Otherwise, Pro Tools may locate to different
places depending on whether the tape is idle
or playing back.
Auto LTC/VITC Requirements
• Make sure the LTC signal is routed properly to
the SYNC peripheral LTC In connector.
• Make sure the VITC-striped video signal is
routed properly to the SYNC peripheral Video
In connector (not a Video Ref connector).
• Make sure to have or stripe matching code on
both your LTC and VITC tracks (and your onscreen video window burn, if any).
• Make sure to select Auto or the correct line
pair for VITC Read.
• Make sure to select the appropriate clock reference, sample rate, frame rate, and freewheel
duration options.
Chapter 4: Using SYNC Peripherals
45
To select Auto LTC/VITC for positional reference:
Bi-Phase/Tach
From Pro Tools:
Bi-Phase/Tach signals are clock reference signals, and do not contain positional information
of their own. However, they do contain enough
information for SYNC Peripherals to calculate
positional information.
„ In the SYNC Setup section of the Session Setup
window, select Auto LTC/VITC from the
Positional Reference pop-up menu.
From the front panel:
Press the Positional Reference switch until
both the LTC and VITC LEDs are simultaneously
lit (this indicates Auto LTC/VITC).
„
From the SYNC Setup software utility
(Windows only):
Select Auto Switch LTC/VITC from the SYNC
Setup Positional Ref pop-up menu.
„
For additional information and examples of
Auto Switch LTC/VITC, see “Auto-Switch
LTC/VITC” on page 72 in Appendix A.
Serial Time Code
SYNC peripherals provide 9-pin ports that allow
MachineControl-enabled systems to remotely
control or follow external 9-pin transports
through the use of serial time code.
For MachineControl-equipped Pro Tools systems, serial time code from either 9-pin port can
be used for positional reference.
To calculate positional reference from
Bi-Phase/Tach, the SYNC peripheral must be
given a starting frame address and a specific
pulses-per-frame value. Each of these related settings are explained in the following sections.
To use Bi-Phase/Tach for positional reference:
1 Do one of the following:
From Pro Tools:
• In the SYNC Setup section of the Session Setup
window, select Bi-Phase from the Positional
Reference pop-up menu.
From the front panel:
• Press the Positional Reference switch to select
Bi-Phase.
From the SYNC Setup software utility
(Windows only):
• Select Bi-Phase/Tach from the SYNC Setup Positional Ref pop-up menu.
2 Continue by setting the starting frame as de-
For details on using serial time code with
SYNC Peripherals, see the MachineControl
Guide.
To use Serial Time Code as the SYNC peripheral
positional reference:
„ In the SYNC Setup section of the Session Setup
window, select Serial Time Code from the Positional Reference pop-up menu.
46
SYNC HD Guide
scribed in “Bi-Phase/Tach Starting Frame” on
page 47, and setting other Input Signals options,
as appropriate.
Bi-Phase/Tach Starting Frame
In order to use the Bi-Phase/Tach signal as a positional reference, the SYNC peripheral also
needs to know the time code address for a particular frame of film. This positional relationship is established by parking the film device at
a particular frame and setting the SYNC peripheral to the equivalent time code value using the
Bi-Phase/Tach Starting Frame parameter.
To set the Bi-Phase/Tach start frame:
From Pro Tools:
1 In Pro Tools, place the playback cursor at the
desired time code location.
2 Choose Setup > Peripherals and click Synchro-
nization.
From the SYNC Setup software utility
(Windows only):
1 In the SYNC Setup Generator/Bi-Phase Preset
section, enter the time code value of the starting
frame, in hours:minutes:seconds:frames.
2 Click Set.
Bi-Phase/Tach Signal
The Bi-Phase/Tach signal can be set to any of the
following:
Bi-Phase: FWD = A leads B When the A square
wave is ahead of the B square wave, the direction of the Bi-Phase signal is “Forward.”
FWD = B leads A When the B square wave is
ahead of the A square wave, the direction of the
Bi-Phase signal is “Forward.”
3 Click the Reset Bi-Phase button.
The Time Code Display on the SYNC peripheral
updates to match the session time code value.
From the front panel:
1 Press Set, and use the Up and Down switches
to display Set Gen (“SE7 6En”).
2 Press Set to display time code numbers. One of
the time code fields (hours:minutes:seconds:frames) flashes.
Tach: FWD = B is Low When the B signal is in a
“low” state, the rate and direction (“r–n–d”) of
the Tach signal is “Forward.”
Tach: FWD = B is High When the B signal is in a
“high” state, the rate and direction (“r–n–d”) of
the Tach signal is “Forward.”
To define the direction for a Bi-Phase/Tach input
signal:
From Pro Tools:
3 Press the Up or Down switches to scroll
through the parameter values.
1 Choose Setup > Peripherals and click Synchoronization.
4 To set a time code setting and advance to the
next field, press and release the Down and Up
switches simultaneously.
2 Choose one of the following settings from the
Bi-Phase/Tach Wiring pop-up menu:
• Bi-Phase: FWD = A leads B
5 Repeat until you have finished setting the
SYNC peripheral to the desired generator start
time.
• Bi-Phase: FWD = B leads A
• Tach: FWD = B is Low
• Tach: FWD = B is High
6 Press Set.
3 Click OK.
The LED Time Code Display stops flashing and
displays the start time.
Chapter 4: Using SYNC Peripherals
47
From the front panel:
1 Press Set, and use the Up and Down switches
to display Bi-Phase/Tach Input Signal
(“bIPH 5I6”).
To set the pulses per frame value for a
Bi-Phase/Tach signal:
From Pro Tools:
2 Press Set.
1 Choose Setup > Peripherals and click Synchoronization.
3 Use the Down and Up switches to scroll pa-
2 In the Bi-Phase/Tach Pulses/Frame field, enter
rameter values:
a value from 2 to 254.
• “A LEAd b”: Bi-Phase: FWD = A leads B
• “b LEAd A”: Bi-Phase: FWD = B leads A
• “r–n–d LO”: Tach: FWD = B is Low
• “r–n–d HI”: Tach: FWD = B is High
3 Click OK.
From the front panel:
1 Press Set, and use the Up and Down switches
4 Press Set.
to display Bi-Phase/Tach Pulses Per Frame
(“bIPH PPF”).
From the SYNC Setup software utility
(Windows only):
2 Press Set. The LED Time Code Display displays
the current PPF value.
1 In the SYNC SEtup Bi-Phase/Tach Parameters
section, choose one of the following settings
from the Wiring pop-up menu:
3 Use the Down and Up switches to scroll
• Bi-Phase: FWD = A leads B
• Bi-Phase: FWD = B leads A
through the parameter values (from 2 to 254
pulses per frame). Holding either switch will
scroll at a faster speed.
4 Press Set.
• Tach: FWD = B is Low
• Tach: FWD = B is High
2 Click Set.
Bi-Phase/Tach Pulses-per-frame (PPF)
There are several different standards for the
number of pulses-per-frame output by Bi-Phase
or Tach devices. You can set the SYNC peripheral to operate from 2 to 254 pulses per frame
from Pro Tools, from the SYNC peripheral front
panel, or using the SYNC Setup software utility’s
Pulse Per Frame setting (Windows only). The
setting should match the PPF rate of the external
device’s Bi-Phase/Tach encoder.
48
SYNC HD Guide
From the SYNC Setup software utility (Windows
only):
1 In the SYNC Setup Bi-Phase/Tach Parameters
section, enter a value from 2 to 254 in the
Pulses/Frame field,
2 Click Set.
Bi-Phase Position Trimming
While using bi-phase as your positional reference, you can trim the Bi-Phase-to-time code
translation at any time. Each press of the Up
switch will advance the time address one frame.
Each press of the Down switch will retard the
time address by one frame. Remember how
many presses you've accumulated so that you
can go back and trim the starting address you
previously programmed.
Compensating for Time Code
Offsets
You can offset the display of incoming time
code in the Pro Tools application. This is useful
when you want to adjust the display of time
code to match the start time of the session (such
as with source material that starts at a different
time), or compensate for source material that is
consistently offset by a fixed number of frames
(such as with some color–corrected video masters).
Pro Tools provides five different types of External Time Code Offset settings. These offsets include:
• MMC (MIDI Machine Control)
• 9-Pin (Deck Control)
• Synchronization peripherals such as the
SYNC HD, SYNC I/O, or other peripherals
(such as MIDI interfaces that provide MIDI
Time Code).
• Sample Offset
Unique values can be defined for each of these
types of offsets, or you can link MMC, 9-Pin,
Sync, and Satellite to adjust in unison.
Positive and negative offset values can be entered to offset Pro Tools time code display later
or earlier, respectively.
Offsets and SYNC Peripheral Time Code Display
To apply the same offset to external MMC, 9-Pin,
Sync, and Satellite time code sources:
„ In the Session Setup window, select Link to apply the same offset value to all devices.
Generating & Regenerating
Time Code
SYNC peripherals can generate LTC, VITC, and
MTC simultaneously, obtaining time addresses
from a variety of sources:
‹ When the Positional Reference is LTC, VITC,
or Bi-Phase, the SYNC peripheral generates LTC,
VITC, and MTC simultaneously, based on the
time address of one of those sources.
‹ When the Positional Reference is Serial Time
Code, you can set the SYNC peripheral to generate LTC.
Time code generated by SYNC peripherals
does not follow session Pull Up and Pull
Down settings.
Read/Regeneration Mode
In this mode, the SYNC peripheral regenerates
time code based on external positional reference
information (LTC or VITC time code, or a BiPhase/Tach signal). Subject to certain conditions, three types of time code (LTC, VITC, and
MTC) are simultaneously regenerated from the
selected positional reference.
The SYNC peripheral front panel display continues to display actual incoming time code, regardless of any External Time Code Offsets settings that are applied in Pro Tools.
To apply an offset to an external time code source:
„ In the External Time Code Offsets section of the
Session Setup window, enter a time in an offset
field.
Chapter 4: Using SYNC Peripherals
49
Requirements for Read/Regeneration of LTC,
VITC and MTC
LTC The external positional reference must be
moving at normal, 1x forward speed (±8 %).
VITC The positional reference must be LTC or BiPhase/Tach, at any readable speed, forward or
reverse. The SYNC peripheral will not regenerate
VITC if the positional reference is VITC.
MTC In order for the SYNC peripheral to regenerate continuous MTC, the external positional
reference must be moving at normal, 1x forward
speed (±8 %). Outside of this speed range and direction, MTC is generated in bursts every 200
milliseconds. This allows MTC-slaved devices to
read VITC or Bi-Phase properly in either direction, and at speeds down to zero. The SYNC peripheral begins regenerating MTC as soon as it
again detects a valid positional reference signal.
To optionally mute idle time MTC output,
see “MTC Output and Idle Muting” on
page 56.
If the positional reference is LTC or VITC, the
SYNC peripheral will regenerate time code addresses that match the incoming time code addresses. If the positional reference is a
Bi-Phase/Tach signal, the SYNC peripheral will
generate time code addresses starting at the BiPhase preset start time. (See “Bi-Phase/Tach
Starting Frame” on page 47 for more information.)
Generator Preset Mode
In this mode, the SYNC peripheral generates
time code internally from a start time based
upon the Generator Preset Time. Using either
the SYNC peripheral front panel controls or the
SYNC Setup software utility, you can start, stop,
resume, and reset time code generation.
When generating time code in Generator Preset
Mode, the SYNC peripheral time code generator
is resolved (locked) to one of three possible
sources, based upon the following rule:
‹ If the Clock Reference is set to Internal, LTC,
Pilot Tone, Bi-Phase/Tach, Digital (AES/EBU), or
Digital (Word Clock), then the time code generator will lock to the selected clock reference.
– or –
‹ If the Clock Reference is set to one of the two
video inputs (Video Ref or Video In), then the
time code generator will reference the Video Ref
input.
Frame Rate Restrictions with Video Reference
In any generator mode, if the Clock Reference is
set to a video input (Video Ref or Video In),
Pro Tools is restricted to generating time code at
the incoming video frame rate.
With SYNC peripherals, the Time Code Rate you
choose is dependent on the video format:
• For NTSC, you can choose only 29.97 FPS
or 29.97 FPS DROP.
• For PAL, you can choose only 25 FPS.
In Generator Preset mode, if the Clock Reference
is set to a video input, 24 fps cannot be used as
the SYNC peripheral time code format.
50
SYNC HD Guide
Generator Start Time
LTC Generation/Regeneration
To set the generator start frame:
Regenerating LTC
From Pro Tools:
SYNC peripherals will regenerate LTC whenever
the external positional reference is moving at
normal, 1x forward speed (±10%).
„ Configure the Session Setup window as appropriate for your system and the current project.
See the Pro Tools Reference Guide for more information.
From the front panel:
1 Press Set, and use the Up and Down switches
to display Set Gen (“SE7 6En”).
2 Press Set. One of the time code display fields
Make sure LTC is correctly routed as explained
in Chapter 2, “Installation and Configuration”.
If you need to adjust the level of the SYNC peripheral LTC output signal, see “Adjusting LTC
Output Level/Gain” on page 40. You can also
adjust the SYNC peripheral LTC servo gain, as
described in “Servo Gain” on page 63.
flashes.
To regenerate LTC:
3 Press the Up or Down switches to raise or
lower the currently flashing value.
4 To set a time code setting and advance to the
next field, press and release Down and Up simultaneously.
From Pro Tools:
„ In the Sync Setup section of the Session Setup
window, select any external positional reference.
5 Repeat until you have finished setting the
From the front panel:
SYNC peripheral to the desired generator start
time.
„ Press the Positional Reference switch to select
an external positional reference (do not select
Generate).
6 Press Set. The SYNC peripheral retains the setting, even when the unit is powered off and on
again, until you change it.
From the SYNC Setup software utility
(Windows only):
„ Select an external positional reference from
the SYNC Setup Positional Ref pop-up.
The SYNC peripheral regenerates LTC as soon as
it receives a valid positional reference signal.
Chapter 4: Using SYNC Peripherals
51
Generating LTC
VITC Generation/Regeneration
In Generator Preset mode, the SYNC peripheral
can generate LTC using either an external or internal clock reference. Make sure LTC is correctly routed and that all your other gear is properly configured before you begin. If necessary,
adjust the input level for the destination device.
When you use a SYNC peripheral to regenerate
or generate VITC, you’ll be inserting VITC into
an existing video signal. The input is derived according to the following rule.
To generate LTC:
From Pro Tools:
1 In the expanded Transport window, click
Gen LTC.
2 Start Pro Tools recording or playback.
Pro Tools commands the SYNC peripheral to begin generating LTC with time addresses synchronized to the session time line.
From the front panel:
1 Press the Positional Reference switch to select
Generate.
2 Configure the time code start in hours:min-
utes:seconds:frames using the Set, Up and Down
switches. See “Generator Start Time” on page 51
for instructions.
3 To begin generating, press and release the
Run/Stop/Clear/Esc switch.
From the SYNC Setup software utility
(Windows only):
1 Select Generate in the Positional Ref pop-up
menu.
2 In the Generator/Bi-Phase Preset section, enter
the time code start time, in Hrs:Min:Sec:Frm. To
reset to 00:00:00:00, click Zero.
3 To begin generating, click Run.
4 When you have finished generating the de-
sired length of LTC, click Stop.
52
SYNC HD Guide
VITC Video Source Rule
SYNC peripherals have two video inputs (“Video
In” and “Video Ref”). The following rule describes which of these two signals VITC is applied to.
‹ If the Clock Reference is set to either of the
two video inputs, then VITC will be applied to
the video signal at the Video Ref input.
‹ Under all other combinations of Positional
Reference and Clock Reference, VITC will be applied to the video signal at the Video In connector.
In addition, the SYNC peripheral will not insert
new VITC while reading VITC from an external
source. This is a safety feature to prevent the loss
of existing VITC in the video stream. VITC is
never inserted when the Positional Reference is
set to VITC or Auto Switch LTC/VITC.
Example Video Input Configuration
One common situation is transferring video
from a source VTR (or a nonlinear video editing
system) to a destination VTR (or a nonlinear
video editing system). The video source signal is
connected to one of the SYNC peripheral video
input connectors according to the VITC Video
Source rule.
The SYNC peripheral Video Out signal is connected to the destination device. The SYNC peripheral is then able to stripe the second VTR’s
videotape with VITC. (At the same time, you
might also want to insert a window dub. See
“Generating a Window Dub” on page 56.)
Unlike LTC, SYNC peripherals can regenerate VITC with both forward and reverse
time code addresses.
To prevent destruction of the original VITC
code, the SYNC peripheral will not re-apply (regenerate) VITC onto the same video stream
from which it is reading VITC.
To regenerate VITC based on an external
positional reference from the front panel:
1 Connect the video source to the SYNC periph-
eral Video Ref connector and loop the signal to
the SYNC peripheral Video Input connector.
2 Press Set, and use the Up and Down switches
to display VITC Insertion (“VI7C In5”).
3 Press Set.
LTC If you want to use LTC as a positional
source, do not select Auto LTC/VITC.
External In order for the SYNC peripheral to regenerate VITC based on an external positional
reference, you need to select both a clock reference and a positional reference.
To regenerate VITC based on an external
positional reference from Pro Tools:
1 Ensure that the SYNC peripheral is connected
in-line with a video source and video destination.
2 Ensure that VITC Insertion Enabled is selected
in the Synchronization page of the Peripherals
dialog.
3 If necessary, choose the line pair from the
VITC Generate Lines pop-up menu in the in the
Synchronization page of the Peripherals dialog.
4 In the SYNC Setup section of the Session Setup
window, select valid clock and positional references, and ensure that you have selected the appropriate video format (NTSC or PAL,
depending on your project). For instructions,
see “Video Format/System” on page 64.
4 Use the Down and Up switches toggle be-
tween On and Off.
5 Press Set to select VITC Insertion.
6 Ensure that you have selected the appropriate
video format (NTSC or PAL).
7 Press Set, and use the Up and Down switches
to display VITC Generate Lines (“6En LInE”).
8 Press Set. The default line pair is14/16, which
is also the SMPTE-recommended setting.
9 Use the Down and Up switches to scroll
through the parameter values and select a VITC
line pair.
10 Press Set. The LED Time Code Display will re-
turn to showing time code numbers.
11 Select valid clock and positional references.
The SYNC peripheral regenerates VITC and inserts it onto the video signal (as soon as it receives a valid positional reference signal).
The SYNC peripheral regenerates VITC and inserts it onto the video signal (as soon as it receives a valid clock reference signal and positional reference signal).
Chapter 4: Using SYNC Peripherals
53
To regenerate VITC based on an external
positional reference using the SYNC Setup
software utility (Windows only):
1 Ensure that the SYNC peripheral is connected
in-line with a video source and video destination.
2 Ensure that VITC Insertion Enabled is selected
and that you have selected the appropriate
video format (NTSC or PAL).
3 Use the VITC Generate Lines menu to configure
To generate VITC internally using Pro Tools:
1 Ensure that the SYNC peripheral is connected
in-line with a video source and video destination.
2 Ensure that VITC Insertion Enabled is selected in
the Synchronization page of the Peripherals dialog.
3 If necessary, choose the line pair from the VITC
Generate Lines pop-up menu in the in the Synchronization page of the Peripherals dialog.
the line pair, if necessary.
4 Select the appropriate clock reference.
5 Select either LTC or Bi-Phase/Tach from the
SYNC Setup Positional Reference pop-up menu:
The SYNC peripheral regenerates VITC and inserts it onto the video signal (as soon as it receives a valid positional reference signal).
4 In the SYNC Setup section of the Session Setup
window, select a valid clock reference and ensure that you have selected the appropriate
video format (NTSC or PAL, depending on your
project). For instructions, see “Video Format/System” on page 64.
5 Put Pro Tools online.
6 Start Pro Tools recording or playback.
Internal VITC Generation
SYNC peripherals can also generate VITC internally, using the integral time code generating
feature. In this mode (Positional Reference
switch = Generate) you can use either an external clock reference, or the SYNC peripheral internal crystal as a clock reference with a variable
start time.
When generating VITC internally, if the insertion is not timed based upon an upstream video
reference you may encounter repeated or
skipped VITC frames. Refer to “VITC Timing
Rule” on page 71 and “VITC Video Source Rule”
on page 52.
Pro Tools commands the SYNC peripheral to begin generating VITC with time addresses synchronized to the session time line.
To generate VITC internally using the front panel
controls:
1 Ensure that the SYNC peripheral is connected
in-line with a video source and video destination.
2 Press Set, and use the Up and Down switches
to display VITC Insertion (“VI7C In5”). For detailed instructions, see “VITC Insertion” on
page 61.
3 Use the Down and Up switches to toggle VITC
Insertion On and Off.
4 When On is selected, press Set.
5 Press Set, and use the Up and Down switches
to display VITC Generate Lines (“6En LInE”).
6 Press Set. The default line pair is 14/16, which
is also the SMPTE-recommended setting.
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SYNC HD Guide
7 Use the Down and Up switches to scroll
6 In the Generator/Bi-Phase Preset section,
through the parameter values and select a VITC
line pair.
enter the time code start time, in
Hrs:Min:Sec:Frm. To reset to 00:00:00:00, click
Zero.
8 Press Set.
9 Using the Positional Reference switch, select
Generate.
10 Set the time code start time. See “Generator
Start Time” on page 51 for instructions.
11 Arm the destination VTR to record video, so
that VITC can be inserted into the video signal,
and be recorded on the destination videotape.
12 Make sure that your chosen clock reference is
actually present and running, then press the
SYNC peripheral Run switch.
The time code addresses will begin to increment.
To pause or stop VITC from the front panel:
Press and release the Run/Stop/Clear/Esc
switch when you want to pause or stop the generating process.
„
To generate VITC Internally using the SYNC Setup
software utility (Windows only):
1 Ensure that the SYNC peripheral is connected
in-line with a video source and video destination.
2 Ensure that VITC Insertion Enabled is selected,
and that you have selected the appropriate format (NTSC or PAL).
3 If necessary, select onto which line pair to generate VITC, using the VITC Generate Lines popup menu.
7 Click Set. Typically, at this point you would
arm the destination VTR to record video, so that
VITC can be inserted into the video signal, and
be recorded on the destination videotape. Make
sure that your chosen clock reference is actually
present and running, and that it is synchronized
with the incoming video signal.
8 Click Run to start. The time code addresses will
begin to increment.
9 Click Stop when you want to pause or stop the
generating process.
Regardless of whether you are generating or
regenerating, an active video signal will
need to be present at one of the SYNC peripheral video inputs. Check to see if the
machine is paused, stopped or unlaced.
MTC Generation/Regeneration
MTC (MIDI Time Code) is a serial digital signal.
In many ways, you can think of it as an inaudible type of LTC that can be used by various MIDI
devices.
MTC is available from the SYNC peripheral MTC
Out connector, which is a standard DIN-style 5pin female MIDI connector.
To use MTC, connect MTC Out to a MIDI In
connector of a device that can recognize and use
MTC. Typically, this would be a console, sequencer, synthesizer or sampler keyboard, a
drum machine or other device.
4 Select the appropriate clock reference, using
SYNC Setup Clock Ref pop-up menu.
5 From the Positional Ref pop-up menu, select
Generate.
Chapter 4: Using SYNC Peripherals
55
MTC Output and Idle Muting
MTC is normally output whenever LTC is output. Whenever LTC output stops, the SYNC peripheral will continue to output MTC in bursts
of one frame every 200 milliseconds. This allows
any connected MIDI-reading device to be continuously updated as to the position of VITC or
Bi-Phase (either of which might be operating at
slow or still speeds). Thus, you can still use a
connected MIDI device for Auto-Spotting from
VITC or Bi-Phase.
Optionally, this constant output can be set to
mute when time code (LTC) is idle.
To mute idle-time MTC output:
Generating a Window Dub
SYNC peripherals offer time code character generation. This superimposes onto an SD video signal a small area called a window dub (or window
burn, or time code window) that displays time
code in hours:minutes:seconds:frames.
A window dub provides a visual cue to your location in a project, and can be helpful when
spotting regions to video frames in Pro Tools, especially if your only time code reference from
tape is LTC (Auto-Spot requires VITC).
The SYNC peripheral character generator obtains its time code address from the chosen Positional Reference.
From Pro Tools
1 Choose Setup > Peripherals and click Synchro-
nization.
2 Select the Idle MTC Enabled option.
3 Click OK.
From the front panel:
1 Press Set, and use the Up and Down switches
to display Idle MTC (“IdLE 7C”).
2 Press Set to display the current state (On or
Off).
3 Press the Up or Down switches to toggle the
Idle MTC setting.
4 Press Set.
From the SYNC Setup software utility
(Windows only):
„
56
Select the Idle MTC Enabled option.
SYNC HD Guide
Window Dub Requirements
Existing Video Signal SYNC peripherals can only
insert a time code window into an existing SD
video signal. This means that at least one video
source signal (from a VTR, nonlinear editing system, or other video device) must be present at
one of the SYNC peripheral video input connectors (Video In or Video Ref). When generating a
window dub, the VITC Timing Rule applies (see
“VITC Timing Rule” on page 71.
SYNC Peripheral Output The signal from the
SYNC peripheral Video Out connector must be
routed to a video destination such as another
VTR or nonlinear editing system.
To insert a time code window into a video signal
using Pro Tools:
To insert a time code window into a video signal
using the front panel controls:
1 Choose Setup > Peripherals and click Synchronization.
1 Press Set, and use the Down and Up switches
2 Select Enable Dub Window.
2 Press Set. The display shows the current On or
3 Configure any of the following window dub
appearance settings from the corresponding
pop-up menu: Vertical Position, Horizontal Position, Size, and Color.
Vertical Position Sets the vertical position of the
window dub, relative to the bottom of the video
picture. The choices range from 10% From Bottom to 50% From Bottom, in 10% increments.
“10% from Bottom” vertical position is outside the standard “safe title” area, which
means it may not be visible on some video
monitors.
to display Burn Enabled (“burn EnA”).
Off setting for Window Burn.
3 Use the Down and Up switches to switch be-
tween the parameter values.
4 Press Set.
Based on the selected positional reference, the
time code character generator burns time code
addresses onto any video signal passing through
the SYNC peripheral.
To insert a time code window into a video signal
using the SYNC Setup software utility (Windows
only):
1 In the SYNC Setup Dub Window section, select
Horizontal Position Sets the window dub’s relative horizontal position within the video picture. The choices include Extreme Left, Left,
Center, Right and Extreme Right.
The “Extreme” horizontal positions are outside the standard “safe title” area, which
means they may not be visible on some
video monitors.
Window Enabled.
2 Specify the appearance of the window dub
with the pop-up menus for Vertical Position,
Horizontal Position, and Color.
Default window dub settings are listed in
“Restoring Factory Settings” on page 68.
Size Sets the relative size of the window dub
(Small or Large).
Color Sets the color of the time code numbers in
the window dub, and the color of the window
dub’s background. The choices include White on
Black Bkgnd; Black on White Bkgnd; White on Video
Bkgnd; or Black on Video Bkgnd. (“Video Bkgnd”
makes the window dub background transparent,
so that the time code numbers are displayed directly on top of the video signal.) The default
setting is White on Black Bkgnd.
4 Click OK.
Chapter 4: Using SYNC Peripherals
57
58
SYNC HD Guide
chapter 5
Additional Operational Information
Front Panel Generator/Parameter Controls
This section details the parameters available from the multi-function Set, Down, Up and
Run/Stop/Clear/Esc switches on the SYNC peripheral front panel. For details on the multi-function
Generator/Parameter switches, see “Front Panel Generator/Parameter Switches” on page 35.
Parameters
SYNC peripheral parameters are selected and edited using the four Generator/Parameter switches.
To select SYNC peripheral front panel parameters:
1 Press Set.
2 Use the Up and Down switches to scroll through available parameters, described below.
The 7-segment LEDs in the Generator/Parameter Display abbreviate some parameter names using numerals to represent letters (such as “5” to represent “S” or “s”). The following table identifies each of
these abbreviations.
Chapter 5: Additional Operational Information
59
SYNC peripheral front panel display of parameters
Set Generator Start Time
Lets you set a start time for the SYNC peripheral
time code generator.
LED
Parameter
SE7 6En
Set Generator Start Time
dI6 rEF
Digital Reference
SPL FrEC
Sample Freq (Rate)
PuLL r7E 1
Pull Up/Down 0.1%
PuLL r7E4
Pull Up 4.167%, Down 4.0%
Digital Clock Reference
bASE CLOC
External Clock Out
VI7C InS
VITC Insertion
The SYNC peripheral can use AES/EBU or Word
Clock (1x) for digital clock reference.
rdr LInE
(VITC) Reader Line
6En LInE
(VITC) Generate Line
burn EnA
Window Burn On/Off
FrEE LEn
Freewheel Duration
L7C LEUL/GAIn
LTC Output level/gain
SErVo Gn
LTC Servo gain
PICH HLd
Pitch Hold On/Off
bIPH PPF
Bi-Phase Pulse-per-frame
bIPH SI6
Bi-Phase Signal Configuration
VIdEO SY
Video Format (NTSC/PAL)
Pull Rate
Hd VIdEo
HD Video Format (SYNC HD only)
IdLE 7C
Idle MTC On/Off
Two Pull Rate settings enable 0.1%, and 4%, Pull
Up or Pull Down for the current sample rate.
dEvicE id
Device ID (SYNC HD only)
USd CPA7
USD Compatibility mode On/Off
(SYNC I/O only)
See “Generator Start Time” on page 51.
See “Digital Clock (AES/EBU or Word Clock) Options” on page 38.
Sample Rate
Selects the SYNC peripheral sample rate.
See “Sample Rate” on page 17.
Pull Rate1 Lets you enable 0.1% pull up or
down.
Pull Rate4 Lets you enable 4.167% pull up, or
4.0% pull down, when available.
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SYNC HD Guide
Base Clock
VITC Read Lines
Configures the Word Clock Out port. Choices
are Session (1x the base session sample rate), or
256x (for Slave Clock devices).
This setting determines which line pair of incoming video is used for the VITC source.
To choose the VITC read lines:
The base sample rate is 44.1 kHz when session sample rate is 44.1, 88.2, or
176.4 kHz, or 48 kHz when session sample
rate is 48, 96, or 192 kHz.
1 Select VITC Read Lines (“rdr LInE”), using the
Set, Down, and Up switches.
2 Press Set.
3 Use Down and Up to scroll parameters, which
VITC Insertion
When selected, VITC will be inserted onto the
outgoing video signal—assuming that a video
signal is present at one of the SYNC peripheral
video inputs, and that the SYNC peripheral is in
a valid mode for inserting VITC.
include:
• Auto (ALL-LInE)—where the SYNC peripheral will search all lines and select the first
valid line pair automatically
• A currently selected read line pair.
4 Press Set.
VITC Generate Lines
To configure the SYNC peripheral to insert VITC
using the front panel:
1 Select VITC Insertion (“VI7C InS”) using the
This setting determines the line pair of the video
signal at the Video Out connector onto which
the SYNC peripheral inserts VITC. Normally,
this should be left at the default setting of 14/16.
Set, Down, and Up switches.
2 Press Set.
3 Use the Down and Up switches to toggle be-
tween On/Off.
4 Press Set.
To choose the VITC generate lines:
1 Select VITC Generate Lines (“6En LInE”), us-
ing the Set, Down, and Up switches.
2 Press Set. The LED Time Code Display displays
the current lines.
3 Use the Down and Up switches to scroll pa-
rameter values.
4 Press Set. The SYNC peripheral will retain the
setting, even when the unit is powered off and
on again, until it is changed.
Chapter 5: Additional Operational Information
61
Window Dub/Burn
To set the freewheel duration:
By enabling this setting, you can superimpose a
window dub onto an incoming video signal.
1 Select Freewheel Length (“FrEE LEn”), using
the Set, Down, and Up switches.
2 Press Set. The LED Time Code Display displays
the current setting, in frames.
3 Use the Down and Up switches to scroll pa-
The front panel lets you enable window dub but
does not let you adjust any window options.
To enable or disable the SYNC peripheral window
dub from the front panel:
1 Select Burn Enabled (“burn EnA”), using the
rameter values.
4 Press Set.
LTC Output Level/Gain
Set, Down, and Up switch.
Adjusts the audio level of the SYNC peripheral
LTC output, from –24 dBu to +9 dBu.
2 Press Set.
The SYNC HD shows the following:
3 Use the Down and Up switches to toggle be-
tween On/Off.
4 Press Set. The SYNC peripheral will retain the
setting, even when the unit is powered off and
on again, until it is changed.
See “Generating a Window Dub” on page 56 for
Pro Tools and the SYNC Setup software utility
window dub instructions. See “SYNC Peripheral
Defaults” on page 68 for default display settings.
Freewheel Length/Duration
Freewheel Length sets the period of time for
which the SYNC peripheral will continue to regenerate time code when incoming time code is
interrupted.
The SYNC I/O shows the following:
See “Adjusting LTC Output Level/Gain” on
page 40 for step-by-step LTC level instructions.
To set the LTC output level:
1 Select LTC Level/Gain (“L7C LEUL” on
SYNC HD, or “L7C GAIn” on SYNC I/O), using
the Set, Down, and Up switches.
2 Press the Set switch again. The LED Time Code
Display shows the current setting, in dBu.
3 Use the Down and Up switches to scroll pa-
rameter values.
See “Freewheel Duration” on page 44 for an explanation of this feature.
62
SYNC HD Guide
4 Press Set.
Servo Gain
Pitch Memory/Hold
This setting provides a user selectable LTC servo
gain offset. The five choices provide different
servo gain settings to reduce the effects of jitter
when locking to linear time code. The front
panel Servo Gain settings correspond to the
same settings available in Pro Tools:
Pitch Memory is useful when resolving the
SYNC peripheral to off-speed, free-running LTC.
When Pitch Memory is enabled, the SYNC peripheral will remain at a pitch (sample rate) that
corresponds to the last known clock reference
speed.
0000 (LTC 0 - fastest) Allows the quickest resolving to incoming LTC, but with greater jitter.
This is the default setting, and should be used
when fast lock ups are critical.
-0001 (LTC 1) Provides an intermediate fast setting.
-0002 (LTC 2 - average) Offers a compromise of
lock up time and jitter quality.
-0003 (LTC 3) Provides an intermediate slow setting.
-0004 (LTC 4 - smoothest) Offers the lowest jitter from LTC resolve, but can take six to ten seconds to achieve full resolve. This setting is most
appropriate when loading audio from an analog
master, where reducing or eliminating jitter is
more important than lock speed. When using
this setting, be sure to allow adequate pre-roll
before punching in.
Turn off Pitch Memory if you want to digitally transfer to another device and to ensure the receiving device gets the correct
sample rate.
Also, turn pitch memory off if you are doing
an analog transfer to Pro Tools and want to
ensure that the recording is made at the exact sample rate set by the Session Setup window.
To enable or disable the SYNC peripheral pitch
memory feature:
1 Select Pitch Hold (“PICH HLd”), using the Set,
Down, and Up switches.
2 Press Set.
3 Use the Down and Up switches to toggle be-
tween On/Off.
To set the LTC servo gain:
4 Press Set. The SYNC peripheral retains the setting, even when powered off, until it is changed.
1 Select Servo Gain (“SErVo Gn”) using the Set,
Down, and Up switches.
2 Press Set.
3 Use the Down and Up switches to scroll pa-
rameter values.
4 Press Set.
Chapter 5: Additional Operational Information
63
Bi-Phase/Tach Pulses Per Frame
Video Format/System
Bi-Phase/Tach involve several settings, including pulse per frame. This sets the number of BiPhase/Tach pulses per frame of time code.
Selects the format (NTSC or PAL) for both the incoming and outgoing video signals.
To set the pulses per frame value for a
Bi-Phase/Tach signal:
1 Select Bi-Phase/Tach Pulses Per Frame
(“bIPH PPF”), using the Set, Down, and Up
switches.
2 Press Set.
3 Use the Down and Up switches to scroll pa-
rameter values.
4 Press Set. The SYNC peripheral retains the set-
ting, even when the unit is powered off and on
again, until it is changed.
Bi-Phase/Tach Input Signal
NTSC The standard for North and South America, Japan, and certain other parts of the world
PAL Used in most of Europe, Asia, and Africa.
Users of SECAM video (for France, Russia, and
other parts of the world) should select PAL.
Be sure you have selected the correct video
format. The SYNC peripheral will not warn
you if you have chosen the wrong one.
To select a video system:
1 Select Video System (“VIdEo SY”), using the
Set, Down, and Up switches.
2 Press Set.
3 Use the Down and Up switches to toggle the
In addition to other Bi-Phase/Tach parameters,
the Input Signal defines the direction of the BiPhase/Tach signal.
For complete instructions, see “Bi-Phase/Tach
Signal” on page 47.
64
SYNC HD Guide
parameters between the following:
• NTSC (“n75C”)
• PAL (“PAL”)
4 Press Set. The SYNC peripheral will retain the
setting, even when the unit is powered off and
on again, until it is changed.
HD Video Format
(SYNC HD Only)
Selects the video reference rate when the Clock
Reference is set to Video Reference (HD).
3 Use the Down and Up switches to select an
video reference rate.
4 Press Set. The SYNC peripheral will retain the
setting, even when the unit is powered off and
on again, until it is changed.
MTC Idle Mute
The following progressive video reference rates
are available from the front panel display:
• Slow PAL 23.976
• Slow PAL 24
MTC is output constantly whenever the SYNC
peripheral is generating time code. Optionally,
this output can be muted when time code (LTC)
is idle.
• 720p - 23.976
• 720p - 24
• 720p - 25
See “MTC Output and Idle Muting” on page 56.
• 720p - 29.97
• 720p - 30
• 720p - 50
Device ID
(SYNC HD Only)
• 720p - 59.94
• 720p - 60
• 1080p - 23.976
• 1080p - 24
Toggles the device ID of the SYNC HD between
SYNC HD (for use with Pro Tools 7.4 or higher)
and SYNC I/O (for use with Pro Tools 7.3 or
lower).
• 1080p - 25
• 1080p - 29.97
• 1080p - 30
• 1080i - 47.95
See “Emulating a SYNC I/O” on page 13.
• 1080i - 48
• 1080i - 50
USD Compatibility Mode
• 1080i - 59.94
(SYNC I/O Only)
• 1080i - 60
• 1080p - 50
• 1080p - 59.94
• 1080p - 60
This setting lets you turn on Universal Slave
Driver (USD) emulation to support older
Pro Tools MIX systems and other USD-compatible audio systems.
To select an HD video format:
1 Select HD Video (“Hd UidEo”), using the Set,
Down, and Up switches.
2 Press Set.
Chapter 5: Additional Operational Information
65
Using Fader Start
Fader Start allows faders in Pro Tools to trigger
external devices to play and stop.
SYNC peripherals have six GPI outputs in total:
two TTL-level and four relays. Together, this
combination of outputs makes it possible to provide Fader Start capability.
Utilization of Fader Start has specific wiring
requirements. See “GPI Relay Wiring for
Fader-Start” on page 94.
To implement Fader Start, Pro Tools maps the
first two visible auxiliary input channels in a session to GPI Relay outputs 0 and 1 (first being
left-to-right in the Mix window, top-to-bottom
in the Edit window).
Example Fader Start Application
In a typical scenario, the Fader Start feature controls playback of a CD player. The CD player
outputs are routed into a Pro Tools stereo Aux
Input. As the Aux channel fader is moved above
–120 dB, playback of the CD player is automatically triggered. Likewise, as the fader is moved
below –120 dB, playback is automatically
stopped.
To rearrange tracks, drag the Track Name
left or right in the Mix window, or up or
down in the Edit window. See the Pro Tools
Reference Guide for more information.
To configure Pro Tools tracks for Fader Start Play
and Stop:
1 Use the New Track dialog to create two new
auxiliary input tracks. If you already have Auxiliary Input tracks, you will use the first and second (top-most in the Edit window, left-most in
the Mix window).
2 When the first visible Auxiliary Input track in
a Pro Tools session is above –120 dB, GPI Relay
output 3 (Fader Start #1) will be enabled; otherwise, it will be disabled.
Similarly, when the second visible Auxiliary Input track in a Pro Tools session is above –120 dB,
GPI Relay output #4 (Fader Start #2) will be enabled; otherwise, it will be disabled.
If you rearrange channel strips in the Pro Tools
Mix or Edit windows, the two GPI outputs will
update dynamically to reflect the current state.
The Fader Start channel must be in a Show Track
state (not hidden). See “GPI Relay Wiring for
Fader-Start” on page 94 for additional GPI information.
Calibrating the SYNC
Peripheral Oscillator
SYNC peripherals provide a feature for calibrating the frequency of the onboard crystal oscillator. This allows the SYNC peripheral to be used
as an extremely accurate frequency reference
while in Internal/VSO mode.
With normal usage, the SYNC peripheral should
never require recalibrating. Each unit is factory
calibrated to within +/– 5 ppm (parts per million).
You may want to recalibrate a SYNC peripheral
in the following situations:
• If greater than 5 ppm accuracy is required.
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SYNC HD Guide
• If the unit needs to be matched to a unique
(nonstandard) frequency.
To restore the SYNC peripheral oscillator
calibration to its factory setting:
• To precisely compensate for component aging.
1 Press Set, then press Up until Video System
– and –
• To restore the original factory setting.
Oscillator recalibration does not occur during firmware updating or when resetting the
SYNC peripheral to factory defaults (see
“Restoring Factory Settings” on page 68).
Oscillator Resolution and Stability
The unit of calibration for SYNC peripherals is
1/64th of a sample period. What this means is
that a SYNC peripheral can theoretically be calibrated to about 1/3 ppm (0.33 part per million).
The unit will maintain calibration across a wide
range in temperature. Long-term drift should be
less than 1 ppm per year due to aging of the
crystal. To put this in perspective, most digital
audio products are accurate to within 20 to
50 ppm and drift with temperature. The SYNC
peripheral’s accuracy is possible because it contains a low-jitter, high-stability temperaturecontrolled crystal oscillator.
Warm Up the SYNC Peripheral Before
Recalibrating
(“VIdEo SY”) is displayed in the LED readout.
2 Press and hold the Up switch. While you continue to hold that switch, press the Clock Reference switch momentarily, and then release both
switches. The LED Time Code Display reads
OSC CAL.
3 Press Set. The LED Time Code Display shows
the current parameter value, which shows a
sample rate frequency deviation from –0999 to
0999.
4 Note the Oscillator Calibration value printed
on the factory sticker, on the SYNC peripheral
bottom panel.
5 Use the Down and Up switches to scroll
through the parameter values.
6 When you reach a value that matches the
sticker’s value, stop scrolling and press Set. The
SYNC peripheral is now calibrated.
7 Press Set. The LED Time Code Display shows
O5C CAL.
8 Press the Down switch to exit OSC CAL.
Before you begin the calibration procedure,
power on the SYNC peripheral and allow it to
warm up for at least five minutes. The temperature of the room (or chassis) isn’t critical during
the calibration procedure. However, if you need
better than 3 ppm accuracy, it is recommended
that you allow the SYNC peripheral to warm up
for at least 30 minutes and that the chassis be at
normal operating temperature.
The original Oscillator Calibration value is
printed on the factory sticker, on the SYNC peripheral bottom panel.
Chapter 5: Additional Operational Information
67
Restoring Factory Settings
A SYNC peripheral can be reset to its default factory settings.
To reset all parameters to default settings:
1 Switch off power to the SYNC peripheral and
wait at least 10 seconds.
2 Hold both the Up and Down front panel
switches and turn on power to the SYNC peripheral. Do not release the Up and Down switches
until the display reads “FAC-CFG.”
Resetting factory settings does not reset the
SYNC peripheral oscillator. See “Calibrating the SYNC Peripheral Oscillator” on
page 66 for information.
Factory Default Settings
The following table lists the default settings of
each parameter.
SYNC Peripheral Defaults
Parameter Name
Default
Set Generator Start Time
01:00:00:00
Digital Reference
AES/EBU
Sample Freq (Rate)
44.1 kHz
VITC Insertion
On
Pull Rates
Off
Base Clock
Session (1x Word)
(VITC) Reader Line
All
(VITC) Generate Line
14–16
Window Burn On/Off
On (Enabled)
Freewheel Duration
8 frames
LTC Output level
+3 dBu
Servo gain
0000
Pitch Hold
Off
Bi-Phase Pulse-per-frame
Bi-Phase Signal
Video System/Format
Idle MTC Enabled
Window Burn options:
0100
A Lead B
NTSC
On
Enabled
Size: Large
Vertical Position: 20% from
Bottom
Horizontal Position: Center
Color: White on Black
background
Variable Speed Offset
(VSO)
68
SYNC HD Guide
Off
Managing and Selecting Video
Inputs
(SD Video Rates Only)
SYNC peripherals have two independent video
inputs, “Video In” and “Video Ref,” on the
SYNC peripheral rear panel. These let you use
one of the video inputs as a Clock Reference (the
resolver sample clock master reference) and use
the other input for working with VITC time
code and the character generator (window dub).
Video Ref If the Clock Reference is one of the
two video inputs, and the Positional Reference is
Generate, then VITC and character generator
functions are applied to the video arriving at the
Video Ref input connector. This helps you avoid
re-patching video cables whenever you want to
stripe a videotape with your reference blackburst
or color bars, along with internally generated
time addresses for VITC (and/or LTC, and/or CG
dub window). In Figure 1 on page 70, this scenario is identical to “Route A.”
If you have just a single video source, the SYNC
peripheral provides a very simple method for
connecting your single video source to both of
the video inputs. See “Using Video Inputs with
VITC and the Character Generator” on page 69.
In a typical video setup, you will supply a reference video signal (black burst or color bars) to
your VCR and to the SYNC peripheral Video Ref
input. You will then connect the VCR's video
output to the SYNC peripheral Video In port. Finally, the SYNC peripheral Video Out will be fed
to your picture monitor and/or another VCR.
Using Video Inputs with VITC and the Character
Generator
Unlike selecting a video input to use for Clock
Reference, input selection for VITC and character generator functions follows a simple rule.
This rule is explained in the following sections
and in Figure 1 on page 70.
Chapter 5: Additional Operational Information
69
Video In For all other combinations of Clock Reference and Positional Reference, VITC and character generator functions are applied to the
video signal arriving at the Video In connector.
In this way, the SYNC peripheral can read VITC
Figure 1. Video Input Flow diagram
70
SYNC HD Guide
from your videotape, or add VITC with or without character generation (window burn) while
dubbing to a second VCR. In Figure 1 on
page 70, this scenario is identical to “Route B.”
appendix a
Additional Synchronization Information
Video and VITC Signals
Black Burst and House Video Reference
A black burst signal is essentially a “positionless” video signal. As with any “shared” video
signal, you’ll want to ensure that your video
feed comes from a properly buffered and distributed source, such as a video distribution amplifier, or the house video reference/black burst
output of another device in the chain.
Resolving to video instead of house video
reference (black burst)
There are several reasons why you would resolve
a SYNC peripheral to a video signal rather than
house synchronization.
When House Video Reference is Unavailable Resolve to a video signal whenever you are synchronizing Pro Tools (or other device) to video,
and you either:
• Do not have a house video reference.
– or –
• Your setup includes equipment that lacks
house video reference input and synchronization capability (including consumer grade
VCR, or some entry-level computer-based editing systems).
Simple Setups In a modest setting with one or
two VTRs, Pro Tools, and a SYNC peripheral, using the video signal as the clock reference is often satisfactory. In these situations, proper synchronization can be achieved using the video
signal as clock reference.
Why VITC is Unavailable for Clock Reference
VITC itself does not provide clock information
directly as part of its time code information,
only positional information. However, since
VITC is always embedded into a video signal,
that video signal can be used as a clock reference
by selecting Video Input as the clock reference
(or Video Ref if your facility has a house video
reference).
VITC Timing Rule
The following rule is in effect whenever you are
generating or regenerating VITC.
‹ Inserted VITC should be monotonic, regardless of whether it is being regenerated or generated.
By monotonic, it is meant that the VITC should
be smoothly ascending or descending, with no
repeated or skipped frame addresses. In order to
achieve monotonicity, the external positional
reference (while regenerating) or the clock
source (in Generator Preset Mode) must be synchronous with the video signal onto which the
VITC is being inserted.
Appendix A: Additional Synchronization Information
71
Example of VITC Timing Rule
Working with Analog Machines
As an example, if you are using LTC as a positional reference from a 3/4-inch U-Matic VTR,
then that VTR should be referenced to the same
video signal that you are applying to the SYNC
peripheral. As another example, in Generator
Preset Mode (Positional Reference = Generate), a
clock reference of Internal is not a good choice,
simply because the SYNC peripheral internal
crystal runs asynchronously with respect to the
supplied video signal, and thus repeated or
skipped frame addresses are sure to eventually
occur.
It is good practice on a 24-track analog tape machine to record time code on Track 24 at a reference level of –10 dBu (or lower), with Track 23
left blank as a “guard” track. This practice avoids
crosstalk “bleed” that can occur between the
time code track and otherwise adjacent audio
tracks. Time code (which is a mid-frequency alternating pitch square wave) is very sensitive to
crosstalk from adjacent tracks, and conversely
you don’t want audible time code leaking onto
your audio tracks.
LTC Signals
Because it’s an analog audio signal, LTC can
sometimes be susceptible to either tape dropouts (tape shedding), or to level mismatches between the LTC source and the LTC input. The
SYNC peripheral Freewheeling feature allows
you to compensate for brief time code dropouts.
However, if you have serious dropouts, you may
not be able to sustain accurate synchronization.
If you plan to use LTC as a clock reference
(whether or not you are also using it as a positional reference), you will need to ensure that
your LTC is recorded at as high a level as possible without distortion, and that there are no
dropouts longer than 1/80th of a frame.
A SYNC peripheral reads LTC most reliably
when fed with a LTC signal of at least –12 dBu
(and preferably 0 dBu to +3 dBu.)
LTC Servo Gain
You can adjust the servo gain of the SYNC peripheral LTC input from the SYNC peripheral
front panel controls and from the Pro Tools Session Setup window. See “Servo Gain” on page 63
for more information.
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SYNC HD Guide
If your ATR is under the control of a synchronizer, you must make sure that the synchronizer
and the SYNC peripheral are both locked to the
same reference source (such as a video black
burst generator.)
Auto-Switch LTC/VITC
Auto-Switch LTC/VITC lets the SYNC peripheral
automatically select between these two (time
code) sources.
LTC and VITC both provide useful and unique
capabilities. For instance, it is impossible to read
LTC off a paused videotape. Consequently, using only LTC, there’s no way you can use Pro
Tools to perform Auto-Spotting of regions when
the tape is paused. However, VITC continues to
be read as long as the picture remains visible, so
it can be used as a positional reference when the
VTR is paused. On the other hand, VITC cannot
be read at fast winding speeds (except by broadcast-quality VTRs); LTC can be read at fast winding speeds, as long as its signal remains within
the high-end frequency response of the ATR or
VTR.
Examples of Auto-Switch LTC/VITC
‹ The SYNC peripheral will switch to LTC for
positional reference during hi-speed searching
and cueing, for example, or whenever the tape
speed is too high to read VITC.
‹ The SYNC peripheral will switch to VITC if
LTC stops or is unavailable. This will include, for
example, if a tape is paused or parked.
‹ If both LTC and VITC are available, the SYNC
peripheral chooses which one to use based on
the speed of playback. The switch-over point is
approximately 75% of full 1x playback speed.
Above 75% playback speed, LTC is favored; below 75% speed, VITC is favored.
If a dropout occurs, the SYNC peripheral waits
until the Freewheel duration has expired before
attempting to switch over to the opposite
source. If neither source is available, the SYNC
peripheral will stop reading time code.
Digital Clock Signal Types
A reference clock signal is part of any digital recording system. It is required because whenever
digital audio information is mixed together or
passed between devices, the playback samples
must be aligned with the recording samples. In
some cases (such as with AES/EBU or S/PDIF digital interfaces), the clock signal is embedded in
the data stream itself. In other cases, such as
SDIF, the clock signal is carried as an entirely
separate signal from the digital audio sample
data.
SYNC peripherals are able to resolve to AES/EBU
and Word Clock.
AES/EBU
Some professional digital audio products use
AES/EBU “null clock” (which is an AES/EBU data
stream that contains only clock information
only and no audio information) as a system
clock reference source. These systems rely upon
a single AES/EBU master clock source that is distributed throughout a digital audio facility, in
much the same way that house synchronization
is distributed throughout a video facility. If you
are connecting a SYNC peripheral to such a system, you will want to use the SYNC peripheral
AES/EBU input as the clock reference connection, so that all system components are referenced to the same time base. (Note that
AES/EBU does not support 176.4 kHz and
192 kHz sample rates.)
In some cases (such as using the SYNC peripheral as a standalone clock resolver or time code
generator without a digital audio workstation),
you may wish to use an audio DAT machine (or
other similar device) as a source of AES/EBU null
clock, and resolve your system to this reference
source. In this case, the audio sample data in the
AES/EBU data stream is stripped off, and only
the clock information is used.
Word Clock
Many professional digital audio products—including open-reel multitrack tape recorders, digital mixing consoles, and the Tascam DA-88
modular digital multitrack—have Word Clock
(1x sample rate) connectors.
Word Clock allows the DA-88 (and other Word
Clock-compatible devices) to send or receive external clock information which controls the
sample rate, which in turn (where applicable)
controls the play and record speed.
Appendix A: Additional Synchronization Information
73
Using just Word Clock, it is possible to create a
“chain” of digital devices in your studio by picking one source as the Word Clock master, and
configuring other sources as Word Clock slaves.
Bi-Phase/Tach
Bi-Phase and Tach are used with mag machine,16, 35, and 70 mm projectors, flatbed editing systems and other types of motor-driven
film equipment. Bi-Phase (sometimes called
Quadrature Sync) and Tach information are similar, though they do differ.
Bi-Phase A Bi-Phase signal consists of two square
waves, which are generated directly by a device’s
transport mechanism, and which are 90° out-ofphase with one another. As a Bi-Phase-generating device plays it outputs a steady stream of
square waves that the SYNC peripheral can use
as its clock reference, at nearly any speed including still/paused.
The SYNC peripheral uses the phase relationship
between the two square waves to determine the
device’s direction (forward or reverse). However,
this is relevant only when the SYNC peripheral
is using the Bi-Phase signal as a positional reference.
Tach A Tach signal is a variation of Bi-Phase.
With Tach’s two signals, one is used only as the
direction indicator, while the other is used as
the velocity, or rate indicator. The SYNC peripheral uses this rate signal when resolving to Tach
as a clock reference.
There are several different standards for the
number of pulses-per-frame for Bi-Phase or Tach
devices. You can set the SYNC peripheral to
match the PPF rate of the external device’s BiPhase/Tach encoder from Pro Tools, or using the
SYNC Setup software utility’s Pulse Per Frame
setting (Windows only).
74
SYNC HD Guide
Strictly speaking, Bi-Phase/Tach signals are clock
reference signals, and do not contain positional
information of their own. However, they do
contain enough information for the SYNC peripheral to calculate positional information.
Bi-Phase/Tach signals use two square waves to
generate pulses that can function as a clock reference. The two square waves are 90° out-ofphase, in a pattern that resembles this:
Square Wave A
Square Wave B
Bi-Phase/Tach signals
With a Bi-Phase signal, the SYNC peripheral can
deduce the direction (forward or reverse) of the
signal based upon which wave is read “high” relative to the other. For instance, with some film
equipment, when the device is running forward,
it will generate a Bi-Phase signal where the “A”
wave leads the “B” wave—that is, where the A
wave peaks before the B wave peaks. When the
device is in reverse, the B wave will lead the A
wave.
However, some film equipment works in the opposite manner, which is why the SYNC peripheral Input Signals option lets you make the appropriate selection (Fwd = A leads B, or Fwd = B
leads A).
Calculating the direction of a Tach signal is
slightly different. As you may recall, Tach also
uses two signals. The “A” signal is a square wave
that provides clock information; the “B” signal
is in a steady state (high or low) that indicates
the direction. Unfortunately, not all Tach-generating equipment uses the B signal in the same
way. Fortunately, the SYNC peripheral Input
Signals option allows you to choose the appropriate method (Tach: Fwd = B is Low, or Tach:
Fwd = B is High).
Please note that Pilot Tone contains no positional information; it is simply a clock reference.
Most 1/4-inch machines have a center track for
time code or pilot.
This explains how the SYNC peripheral can use
a Bi-Phase/Tach signal to deduce the direction,
and how it also uses the signal as a clock reference—as long as the SYNC peripheral is told the
starting frame of the first clock signal.
Pilot Tone
SYNC peripherals can resolve to an external Pilot Tone signal for synchronizing to (or transferring audio from) certain types of open-reel audio
tape recorders.
In general, Pilot Tone is a sine wave reference
signal running at the “line frequency” or “mains
frequency,” meaning the same frequency transmitted by the AC line voltage from the local
power utility.
Pilot Tone is used on location film shoots to establish a common synchronization reference between a film or video camera with a portable
1/4-inch analog ATR (such as those made by Nagra or Stellavox). On location, Pilot Tone is derived by clock referencing the camera to the local AC line frequency (which is 60 Hz or 50 Hz
depending on the country of origin), and this
same frequency is then used to clock-reference
the ATR. The result is that both the camera and
the ATR will run at the same speed.
You can think of Pilot Tone as a kind of inexpensive and readily available “house sync” for
location production. Increasingly, it’s being replaced by time code, since new-generation film
cameras as well as many portable DAT recorders
are time code-capable.
Appendix A: Additional Synchronization Information
75
76
SYNC HD Guide
appendix b
Technical Specifications
General
Nominal Sample Rates
Sample Rate
Pull Up/Down
44100
48000
88200
96000
176400
192000
+4.1667%
and +0.1%
45983
50050
91967
100100
n/a
n/a
+4.1667%
45938
50000
91875
100000
n/a
n/a
+4.1667%
and –0.1%
45892
49950
91783
99900
n/a
n/a
+0.1%
44144
48048
88288
96096
176576
192192
–0.1%
44056
47952
88112
95904
176224
191808
–4.0% and
+0.1%
42378
46126
84757
92252
n/a
n/a
–4.0%
42336
46080
84672
92160
n/a
n/a
–4.0% and
–0.1%
42294
46034
84587
92068
n/a
n/a
Appendix B: Technical Specifications
77
General
Frame Rates
30 fps
30 fps drop-frame
29.97 fps
29.97 fps drop-frame
25 fps
24 fps
23.976 fps
Variable Speed Override
Burn-in Window
Dimensions
78
±350 cents (±58.25%)
Aging:
±2 ppm/year typical
Position:
5 horizontal and vertical positions
Size:
Large and small text
Color:
Black or white text on white or black
background or keyed
Height:
1RU/1.75” (4.45 cm)
Width:
19.0” (48.26 cm)
Depth:
10.5” (26.67 cm)
Weight
5.0 lbs (2.27 kg)
Vibration Resistance
5 mm displacement, 10 to 55 Hz, each axis
SYNC HD Guide
General
Shock
5 G max
Operating Temperature
32 to 131 degrees F (0 to 55 degrees C)
Storage Temperature
-40 to 176 degrees F (-40 to 80 degrees C)
Relative Humidity
0 to 95%, non-condensing
Power Requirements
Voltage:
85 to 264 VAC
Frequency:
47 to 63 Hz autoswitching
Wattage:
9.5 W typical, 30 W maximum
Connector:
3-pin, AC and ground (IEC
950:320;3.2.4)
Agency Compliance
Meets FCC Part 15 Class A limits, CD EN 55022A, CE EN 60950,
CE EN 55081:1, UL 1419 and CSA 22.2
Appendix B: Technical Specifications
79
Rear Panel Connectors
Connector
Specifications
LTC In
Format:
SMPTE/EBU 80-bit longitudinal, drop frame/non-drop
frame
Connector:
3-pin XLR female per IEC 268-12
Speed Range:
1/30 to 80X play speed, forward or backward
Level:
–24 dBu to +9 dBu, differential (pin 2 hot)
Impedance:
200K ohms
Format:
SMPTE/EBU 80-bit longitudinal, drop frame/non-drop
frame
Connector:
3-pin XLR male per IEC 268-12
Speed Range:
±10% of play speed
Level:
–24 dBu thru +9 dBu RMS, differential (pin 2 hot)
Level Default:
0 dBu RMS, 1.52V p-p ±10mV
Output Impedance:
5K ohms
Load Impedance (minimum):
100 ohms
Rise/Fall Time:
42us ± 1us measured between 10% and 90% p-p
S/N Ratio:
–60 dB RMS at 0 dBu level
Format
NTSC or PAL composite video
Level:
1V p-p
Termination:
75 ohms
LTC Out
Video (Main) In
80
SYNC HD Guide
Rear Panel Connectors
Connector
Specifications
Video (Main) Out
Level:
1V p-p
Source Impedance:
75 ohms
Format
SMPTE 90-bit, drop frame/non-drop frame
Line Range:
10 to 40 (all-line mode), 10 to 22 (single-line mode)
Format:
SMPTE 90-bit, drop frame/non-drop frame
Line Range:
Two lines, 10 to 20
Format:
NTSC or PAL composite video
Level:
1V p-p
Termination:
100K ohms
Level:
1V p-p
Termination:
100K ohms
Description:
Passive loop-thru of Video Ref in
Level:
5 V p-p at 110 ohms (pin 2 hot)
Connector:
3-pin XLR female per IEC 268-12
Level:
5 V p-p at 110 ohms (pin 2 hot)
Connector:
3-pin XLR male per IEC 268-12
(VITC In)
(VITC Out)
Video (Ref) In
Video (Ref) Out
AES/EBU In
AES/EBU Out
Appendix B: Technical Specifications
81
Rear Panel Connectors
Connector
Specifications
Word Clock In
Level:
0 to .5 V (low), 2.0 to 6.0 V (high)
Connector:
BNC Female
Level:
TTL (3.3 V typical)
Connector:
BNC Female
Level
0 to .5 V (low), 2.0 to 6.0 V (high)
Connector
BNC Female
Level
TTL (3.3 V typical)
Connector
BNC Female
Bi-phase/Tach/
GPI/Pilot
Connector:
25-pin D-subminiature female (DB25)
(Bi-phase/Tach In)
Frequency Range:
0 to 76.8 KHz
Level:
4.5 to 12V, opto-isolated
Current:
10 mA max
Polarity (bi-phase):
Both inputs are software programmable
Polarity (tach):
“Direction” polarity is software programmable
Modulo Range:
2 thru 254
Word Clock Out
Loop Sync In
Loop Sync Out
82
SYNC HD Guide
Rear Panel Connectors
Connector
Specifications
(Pilot In)
Level:
100 mV to 5.5 V p-p, differential
Frequency Range:
50/60 Hz nominal
Impedance:
200K ohms
Description:
Four opto-isolator inputs/returns
Level:
4.5 to 5.5 V
Current:
10 mA max
Frequency:
Frame-rate max
Latency:
Half frame max
Description:
Two TTL-level outputs
Level:
TTL (3.3 V typical)
Current:
15 mA
Frequency:
Frame-rate max
Latency:
Half-frame max
Description:
Four pairs of SPST contacts, normally open
Load (while switching):
.5 A max at 200 VDC
Load (continuous):
1.5 A max at 200 VDC
Operate/Release Time:
1 ms
Repetition Rate:
Frame-rate max
Latency:
Half frame max
(GPI In)
(GPI Out (TTL))
(GPI (Relay))
Appendix B: Technical Specifications
83
Rear Panel Connectors
Connector
Specifications
MIDI Time Code
(MTC) Out
Current Rating:
15 mA current loop
Rate:
31.25 Kilobaud
Connector:
5-pin DIN female
Cable Length:
50 feet (15 meters) max
Format:
Apple Mac-compatible serial printer port
Connector:
8-pin mini DIN female
Cable Length:
50 feet (15 meters) max
Host Serial
84
SYNC HD Guide
appendix c
Wiring Diagrams and Pin Assignments
If you are connecting an unbalanced signal to the
SYNC peripheral LTC In or LTC Out connectors:
LTC Connectors
SYNC peripheral LTC In and LTC Out connectors are balanced XLRs with Pin 2 wired “+” or
“hot,” Pin 3 wired “–” or “cold,” and Pin 1 wired
to ground (shield). Depending on whether you
are connecting a balanced or unbalanced signal
to these connectors, different wiring configurations are recommended for optimum signal integrity, especially for long cable runs.
• Connect only Pin 2 to the “+” signal;
• Connect Pin 1 to ground at all inputs and outputs.
1
2
• Pin 1 and ground should be connected at the
input only (not at the output). This will prevent ground loops between the shield and the
Pin 1 conductor.
1
3
2
+
–
GND
1
3
Device
LTC Out
Wiring diagrams for the SYNC peripheral LTC In and
LTC Out connectors (unbalanced signal)
Device
LTC In
+
GND
N.C.
If you are connecting a balanced signal to the
SYNC peripheral LTC In or LTC Out connectors:
Device
LTC In
2
+
–
GND
N.C.
3
2
+
–
GND
1
3
Device
LTC Out
Wiring diagrams for the SYNC peripheral LTC In and
LTC Out connectors (balanced signal)
Appendix C: Wiring Diagrams and Pin Assignments
85
Bi-Phase/GPI/Pilot Pin Diagram
VCC_P15V
VR1
8
VOUT
NC
GND1
GND2
NC
GND3
GND4
1
1
4
2
3
2
0.1UF
1.0UF
V.REG,78L12ACM,+12V,0.1A,S0-8
480508807-00
SOL8
Biphase/GPI/Pilot
GND
12V_OUT
J3
27
BIPHA_I
13
25
12
24
11
23
10
22
9
21
8
20
7
19
6
18
5
17
4
16
3
15
2
14
1
BIPHB_I
GPIN3
OPTRETURN
RET3
GPOUT3_B
GPIN2
GPOUT3_A
RET2
GPOUT2_B
GPIN1
GPOUT2_A
RET1
GPOUT1_B
GPIN0
GPOUT1_A
RET0
GPOUT0_B
PILOT_IN+
GPOUT0_A
PILOT_INGPOUT1
GPOUT0
XREF=9
XREF=9
XREF=9
XREF=9
XREF=9
XREF=9
XREF=9
XREF=9
XREF=9
XREF=9
XREF=9
XREF=9
XREF=9
XREF=9
XREF=9
XREF=9
XREF=9
XREF=9
XREF=8
XREF=9
XREF=8
XREF=9
XREF=9
26
DB25F_RA
GND_C
Bi-Phase/GPI/Pilot
86
SYNC HD Guide
3
C4
C3
5
7
6
VIN
5V
FB33
DSS306_55Y271M
FILTER_EMI
270101433
L_3P
GND_C
Bi-phase/Tach OptoCoupler Input
GND_C
5V
R49
1K
R79
1K
7
U6
XREF=9
BIPHA_I
R47
634
EN
+
2
3
-
8
VCC
6N137_DP
IC, OPTOCOUPLER
320003987
DIP8
C27
BIPHA
6
GND
5
0.1UF
GND
5V
1K
R77
7
U5
XREF=9
XREF=9
BIPHB_I
OPTRETURN
R46
634
XREF=13
2
3
8
VCC
6
EN
+
6N137_DP
IC, OPTOCOUPLER
320003987
DIP8
C25
GND
BIPHB
XREF=13
5
0.1UF
GND
Bi-phase/Tach
Appendix C: Wiring Diagrams and Pin Assignments
87
GPI Relay Outputs
K4
XREF=9
XREF=9
GPOUT3_A
GPOUT3_E2
1
3
7
5
RELAY
RLY_SIP4_DG1A_BW
GPOUT3_B
XREF=9
GND
K3
XREF=9
XREF=9
GPOUT2_A
GPOUT2_E2
1
3
7
5
RELAY
RLY_SIP4_DG1A_BW
GPOUT2_B
XREF=9
GND
K2
XREF=9
XREF=9
GPOUT1_A
GPOUT1_E2
1
3
7
5
RELAY
RLY_SIP4_DG1A_BW
GPOUT1_B
XREF=9
GND
K1
XREF=9
XREF=9
GPOUT0_A
GPOUT0_E2
1
3
7
5
RELAY
RLY_SIP4_DG1A_BW
GPI Relay Output
88
SYNC HD Guide
GPOUT0_B
GND
XREF=9
XREF=13
XREF=13
XREF=4
XREF=13
XREF=13
XREF=13
XREF=13
GND
5V
GPOUT1_O
GPOUT0_O
MIDI_OUT
GPOUT3_E
GPOUT2_E
GPOUT1_E
GPOUT0_E
20
1
19
9
8
7
6
5
4
3
2
GND
Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0
C85
326904606
10
11
12
13
14
15
16
17
18
0.1UF
74FCT2541_SL
VCC
OE1
OE2
D7
D6
D5
D4
D3
D2
D1
D0
U26
GND
NC
GPOUT3_E2
GPOUT2_E2
GPOUT1_E2
GPOUT0_E2
GND
XREF=9
XREF=9
XREF=9
XREF=9
221R
GND
221R
R119
221R
R121
R4
1
1
2
2
3
3
GND_C
FB29
DSS306_55Y271M
FILTER_EMI
270101433
L_3P
GND_C
FB21
DSS306_55Y271M
FILTER_EMI
270101433
L_3P
NC
NC
J10
GPOUT0
1
XREF=9
2
DIN5F_DIN5
DIN_5F_PIN
210401223
DIN5
GND_C
6
1
3
5
MTC OUT
3
GND_C
2
GPOUT1
GND_C
1
FB30
DSS306_55Y271M
FILTER_EMI
270101433
L_3P
7
2
4
XREF=9
GND_C
FB20
DSS306_55Y271M
FILTER_EMI
270101433
L_3P
3
R3
221R
5V
GPI (TTL)/MTC Outputs
C87
220PF
C86
220PF
GPI TTL/MTC Output
Appendix C: Wiring Diagrams and Pin Assignments
89
GPI (opto) Inputs
5V
R56
1K
1K
R88
7
U11
XREF=9
XREF=9
GPIN3
392
R55
2
RET3
3
8
EN
+
-
6
6N137_DP
IC, OPTOCOUPLER
320003987
DIP8
VCC
GND
GPIN3_I
XREF=2
5
0.1UF
C36
5V
1K
R87
GND
7
U10
XREF=9
XREF=9
GPIN2
392
R54
2
RET2
3
8
EN
+
-
6
6N137_DP
IC, OPTOCOUPLER
320003987
DIP8
VCC
C35
GND
GPIN2_I
XREF=2
5
0.1UF
5V
R86
1K
GND
7
U9
XREF=9
XREF=9
GPIN1
392
R53
2
RET1
3
8
EN
+
-
6
6N137_DP
IC, OPTOCOUPLER
320003987
DIP8
VCC
C34
GND
GPIN1_I
XREF=2
5
0.1UF
5V
R85
1K
GND
7
U8
XREF=9
XREF=9
GPIN0
RET0
R52
392
2
3
8
EN
+
VCC
6N137_DP
IC, OPTOCOUPLER
320003987
DIP8
C33
6
GND
GPIN0_I
5
0.1UF
GND
GPI (opto) Input
90
SYNC HD Guide
XREF=2
Connector Pin Assignments
Mac Serial Port Connector Pin Assignments
Mac Serial Port
Pin #
Name
Description
Mac Connection
1
NC
No connection
Pin 2 (HSKiB)
2
RTS_IN
Request To Send (input to SYNC peripheral)
Pin 1 (HSKoB)
3
RX_OUT
Transmitted data (output from SYNC peripheral)
Pin 5 input (RXDB–)
4
GND
Chassis ground
Ground
5
TX_IN
Received data (input to SYNC peripheral)
Pin 3 output (TXDB–)
6
GND
Chassis ground
Pin 8 input (RXDB+)
7
CTS_OUT
Clear To Send (output from SYNC peripheral)
Pin 7 input (GPiB)
8
NC
No connection
Pin 6 (TXDB+)
GND
Chassis ground
Ground
Shell
Appendix C: Wiring Diagrams and Pin Assignments
91
Bi-phase/Tach/GPI/Pilot Port (Accessory Port) Connector Pin Assignments
Pin #
92
Name
Description
1
GPOUT0
GPI TTL-level output 0
2
GPOUT1
GPI TTL-level output 1
3
GPOUT0_A
GPI Relay 0, contact A
4
GPOUT0_B
GPI Relay 0, contact B
5
GPOUT1_A
GPI Relay 1, contact A
6
GPOUT1_B
GPI Relay 1, contact B
7
GPOUT2_A
GPI Relay 2, contact A
8
GPOUT2_B
GPI Relay 2, contact B
9
GPOUT3_A
GPI Relay 3, contact A
10
GPOUT3_B
GPI Relay 3, contact B
11
OPTRETURN
Return from Bi-phase/Tach opto-isolators
12
BIPHB_I
Input to Bi-phase/Tach opto-isolator B
13
BIPHA_I
Input to Bi-phase/Tach opto-isolator A
14
GND
Chassis ground
15
PILOT_IN–
Pilot tone input, negative
16
PILOT_IN+
Pilot tone input, positive
17
RET0
Return from GPI opto-isolator “0”
18
GPIN0
Input to GPI opto-isolator “0”
19
RET1
Return from GPI opto-isolator “1”
20
GPIN1
Input to GPI opto-isolator “1”
21
RET2
Return from GPI opto-isolator “2”
22
GPIN2
Input to GPI opto-isolator “2”
23
RET3
Return from GPI opto-isolator “3”
24
GPIN3
Input to GPI opto-isolator “3”
25
VDD
+12V DC
Shell
GND
Connected to chassis ground
SYNC HD Guide
SYNC Peripheral Cable Pin
Assignments
SYNC Peripheral DigiSerial Cable
A 12-foot Serial cable is included with the SYNC
peripheral to support connection of the SYNC
peripheral to the DigiSerial port on a
Pro Tools|HD-series core card.
If you need to make a custom DigiSerial cable,
refer to the following pin assignment table for
the SYNC-to-DigiSerial port cable.
SYNC-to-DigiSerial cable
SYNC Setup Software Utility Cable
(Windows Only)
The following table shows the pin assignments
needed for a SYNC-to-COM port cable to
support the SYNC Setup software utility on a
Windows computer.
SYNC-to-COM cable (Windows)
Mini DIN 8-pin Male to 9-pin D-Sub Female
2
7
3
2
4
5
5
3
7
8
1
2
Shell
Shell
2
1
1, 6, 8 none
1, 4, 6, 9 none
3
5
4
4
5
3
6
8
7
7
8
6
Mini DIN 8-pin Male to Mini DIN 8-pin Male
Appendix C: Wiring Diagrams and Pin Assignments
93
Bi-phase/Tach/GPI/Pilot Port
Interfacing Notes
The six opto-isolators are 6N137 devices. The
four GPI input ports pass through 390 ohm series resistors to the cathode. The two BiPhase/Tach inputs pass through 634 ohm series
resistors to the cathode.
‹
The two TTL-level GPI outputs are driven by a
74FCT541. Each output passes through a 220
ohm series resistor.
‹
‹ 12 volts is supplied at the connector for the
purpose of driving the opto-isolators in film
tach applications. It is regulated and can supply
up to 100mA.
For Tach, the “rate” input is “BIPHA_I” and
the “direction” input is “BIPHB_I.” The polarity
of “BIPHB_I” is software programmable and defaults to “low” for “forward.”
GPI Triggers
GPI output signals information:
0 (relay) = Play
1 (relay) = Record Ready
2 (relay) = fader start #1
3 (relay) = fader start #2
4 (TTL) = Stop
5 (TTL) = Record
Logical GPI numbers 0 through 3 are associated
with GPI relay outputs 0 through 3 (pins 3
through 10). GPI numbers 4 and 5 are associated
with GPI TTL outputs 0 and 1 (pins 1 and 2).
GPI TTL WIring
‹
‹ For Bi-phase, the default polarity relationship
between A and B is software programmable. The
default setting for “forward” is “A leads B.” This
means that the rising edge of A (0° phase) must
precede the rising edge of B (90° phase).
For highest signal quality, use a 25-pin cable
with individually shielded conductors.
‹
GPI Relay Wiring for Fader-Start
SYNC peripherals have a total of four Relay-level
GPI outputs on pins 3/4, 3-10 of the DB25 connector (see the circuit diagram GPI (TTL)/MTC
Outputs).
The GPI Relay outputs are intended to drive Relay loads only.
94
SYNC HD Guide
The circuit can drive approximately 2 mA
through a load of 1.6K and maintain a logic
high level of 3.3V. In an application where the
equipment being controlled has more demanding power requirements, an external buffer or
relay circuit mst be used. This would typically be
constructed as part of a custom electrical interface.
Each GPI TTL output is fully short-circuit protected via a 220-ohm series resistor.
Before attempting to wire any type of
custom interface, always check the electrical
specifications provided by the equipment
manufacturer, including voltage levels,
current, loading and polarity. Incorrect
wiring may damage your equipment, the
SYNC peripheral, or cause personal injury.
index
Numerics
9-pin 20
MachineControl serial time code 36
output ports 28
LEDs 23
list of supported clock sources 2
SYNC Setup software utility 29
Clock Source 15
color (for window dub) 57
A
absolute time code (and LTC) 43
AC Power In 28
AES/EBU
as clock reference 38
connecting 11
connectors 27
Auto ID 14
Auto Switch 45
and freewheel duration 73
B
back panel 26
base clock 61
Bi-Phase/Tach 26, 46, 74
for mag, flatbed, projectors 41
front panel 64
GPI Relay Outputs diagram 88
GPI/Pilot pin assignments 92
input wiring diagram 86, 87
positional reference 46
SYNC Setup software utility 31
black burst (house video reference) 10, 26, 36
BNC 38
back panel 26
C
character generation
see window dub
clock reference 15, 36, 73
and clock source 15
choosing digital source 38
front panel 23
D
DASH 38
DAT signals 73
DF (drop frame) front panel LED 25
digital clock
AES/EBU, Word, SuperClock 73
front panel 60
setting 38
Down switch 35
drop outs
and auto-switch LTC/VITC 73
and time code freewheel 44
LTC troubleshooting 72
E
external clock out 61
F
factory defaults 68
fader start 66
wiring 94
fields (odd/even) indication 29
flatbed and Bi-Phase/Tach 41
fps 29
frame edge alignment 37
frame rate
front panel 25
SYNC Setup software utility 29
freewheel duration 30
and auto-switch LTC/VITC 73
front panel 62
Index
95
front panel
Lockout mode 33
switches and displays 23
servo gain 63
wiring diagrams 85
M
G
generating time code 49
Generator
Bi-phase Preset 31
controls for 35
Preset Mode 50
Generator/Parameter Controls 35
GPI
and fader start 66
back panel connector 26
pinout 86
TTL wiring 94
GPI (opto) Inputs 89
Mac Serial Port
pinout 91
MachineControl 20
mag and Bi-phase/Tach 74
monotonic VITC 71
MTC 55
and Idle MTC Output 30
burst mode 56
generation/regeneration 55
Out (back panel) 27
pinout 89
time code output 27
MTC Out 11
H
N
Host Serial 27
house sync 10
NTSC 30
selecting 64
null clock 73
I
Idle MTC Enabled
front panel 56
in SYNC I/O Setup 56
O
oscillator reset 66
P
L
LED Time Code Display 24
legacy interfaces 9
Locked indicator
front panel 25
Pro Tools 17
Loop Master 24
Loop Sync 14, 28
Auto ID 14
connecting 8
LTC 10
and clock reference 39
generation/regeneration 51
In (back panel) 27
lockup speed settings 39
Out (back panel) 27
output level (front panel) 62
output level (SYNC Setup software utility) 30
output level/gain (front panel) 62
positional reference 43
96
SYNC HD Guide
PAL 30
selecting 64
phase
see Bi-Phase
Pilot
back panel port 26
pinout 86
Tone 40
Pin 1, 2, 3 (LTC) 85
Pitch Memory 43
enabled (SYNC I/O Setup) 30
front panel (pitch hold) 63
positional reference 17, 43
front panel 25
SYNC Setup software utility 29
Pull Rate 29
Pull Up and Pull Down
actual rates 24
when generating time code 49
Pulses Per Frame
configuring 41
front panel 64
Q
Quadrature Sync 74
R
Read/Regeneration Mode 49
Ref Present indicator 17
regenerating time code 49
relays 66
Remote Mode
front panel 25
SYNC Setup software utility 33
Remote-Only Mode 33
RUN/STOP/CLEAR 35
S
sample rate 17
and pull up/down rates 24
front panel (sample frequency) 60
front panel LED displays 24
SECAM 30, 64
serial port 27
serial time code
and clock reference 36
using for positional reference 46
Servo Gain 63
Slave Clock
see SuperClock
Speed Cal Indicator
front panel 25
Pro Tools 17
Status
front panel 25
SYNC Setup software utility 29
Super Clock 38
as clock reference 38
SYNC Setup software utility 29
SYNC Setup software utility
configuring 20
overview 28
status display 29
time code display 29
wiring diagram 93
T
Tach 74
connector 26
time code
drop outs, freewheeling 44
generating/regenerating 49
MIDI (MTC output) 27
serial 36
SYNC Setup software utility 29
Time Code Rate 18
TTL 89
wiring 94
U
Up switch 35
user sync
see base clock
V
Variable Speed Override (VSO) 31, 42
Vertical Position 57
video
connecting 10
format, front panel 64
format, SYNC Setup software utility 30
managing inputs 69
odd/even field, display of 29
Video In connector 27
Video In format 19
Video Out connector 27
Video Ref
and Word clock 37
connecting 10
terminating 26
Video Ref format 18
VITC
as positional reference 52
connector for positional reference 27
default line pair 53
Generate Lines, front panel 61
Generate Lines, SYNC Setup software utility 30
Insertion, front panel 61
Insertion, SYNC Setup software utility 30
monotonic 71
positional reference 44
Read Lines, defaults 30
Read Lines, front panel 61
Index
97
Read Lines, SYNC Setup software utility 30
related settings 45
timing rule 71
video source rule 52
W
window dub
front panel enable 62
generating 56
setting color 57
vertical position 57
wiring diagrams 85
SYNC Setup software utility 93
Word clock 73
1x clock 38
and Video Ref 37
as clock reference 38
base clock output 61
connecting 11
connectors 28
98
SYNC HD Guide
www.digidesign.com
DIGIDESIGN
2001 Junipero Serra Boulevard
Daly City, CA 94014-3886 USA
TECHNICAL SUPPORT (USA)
Visit the Digidesign Online Support Center
at www.digidesign.com/support
PRODUCT INFORMATION
For company and product information,
visit us on the web at www.digidesign.com